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029-86117055

    testing Project / test items
  • Soil testing
  • Hazardous waste detection
  • Sediment
  • surface water
  • Drinking Water
  • waste water
  • Secondary water supply
  • Farmland irrigation water
  • ambient air
  • Indoor air

    1. Soil pollution

    Soil pollution can be roughly divided into inorganic pollutants and organic pollutants. When there are too many harmful substances in the soil, which exceed the self purification ability of the soil, the composition, structure and function of the soil will be changed, the microbial activities will be inhibited, and the harmful substances or their decomposition products will gradually accumulate in the soil, and then through "soil → plant → human body" or "soil → water → human body" It is soil pollution that is absorbed by human body indirectly to harm human health.

     Soil testing

    2. Classification of soil pollutants

    There are four types of soil pollutants: ① chemical pollutants (including inorganic pollutants and organic pollutants, mainly including heavy metals, synthetic fertilizers containing nitrogen / phosphorus / potassium, chemical pesticides, petroleum and other inorganic or organic synthetic products); ② physical pollutants (solid wastes from industry and mining industry, such as industrial waste, tailings, waste rock, fly ash, etc.);. ③ Biological pollutants (refers to the urban garbage with various pathogens and the waste water, waste and manure discharged from health facilities (including hospitals); ④ radioactive pollutants (mainly exist in the areas of nuclear raw material mining and atmospheric nuclear explosion, mainly including strontium and cesium, etc.) with long life in the soil.

    3. Characteristics of soil pollutants

    Soil pollution is hidden and lagging. Air pollution, water pollution, waste pollution and other issues are generally intuitive, can be found through the senses. However, soil pollution is different. It is often determined by analyzing soil samples, detecting crop residues and even studying the impact on human and animal health. Therefore, soil pollution usually lags for a long time from pollution to problems.

    4. Harm of soil pollutants

    1) It will reduce the yield of crops and the quality of agricultural products

    2) Pollution of groundwater and surface water

    3) , affecting the quality of atmospheric environment

    4) Harm to human health

    5. Standard value of soil environmental quality

    Soil environmental quality standard mg / kg
    Project level class a second level Three levels
    Soil pH Natural background <6.5 6.5~7.5 >7.5 >6.5
    Cadmium ≤ zero point two zero zero point three zero zero point six zero one  
    Mercury ≤ zero point one five zero point three zero zero point five zero one one point five
    Arsenic paddy field ≤ fifteen thirty twenty-five twenty thirty
    Dry land ≤ fifteen forty thirty twenty-five forty
    Copper farmland, etc thirty-five fifty one hundred one hundred four hundred
    Orchard ≤ one hundred and fifty two hundred two hundred four hundred
    Lead ≤ thirty-five two hundred and fifty three hundred three hundred and fifty five hundred
    Chromium paddy field ≤ ninety two hundred and fifty three hundred three hundred and fifty four hundred
    Dry land ≤ ninety one hundred and fifty two hundred two hundred and fifty three hundred
    Zinc ≤ one hundred two hundred two hundred and fifty three hundred five hundred
    Nickel ≤ forty forty fifty sixty two hundred
    BHC ≤ zero point zero five zero point five zero one
    Didi ≤ zero point zero five zero point five zero one


    Note: ① Heavy metals (mainly trivalent chromium) and arsenic are calculated according to the amount of elements. They are suitable for soil with cation exchange capacity > 5cmol (+) / kg. If ≤ 5cmol (+) / kg, the standard value is half of the value in the table.

    (2) BHC was the total amount of four isomers and DDT was the total amount of four derivatives.

    (3) for the soil environmental quality standard of paddy upland rotation land, the paddy field value is used for arsenic, and the dry land value is used for chromium.

    1. Scope

    This standard specifies the identification standard of hazardous waste characterized by leaching toxicity.

    This standard is applicable to the identification of leaching toxicity of solid waste produced in any production, living and other activities.

    2. Normative references

    The clauses in the following documents become the clauses of this standard by reference to this part of GB 5085. For undated references, the latest edition is applicable to this standard.

    HJ / T 299 toxic leaching method of solid waste sulfuric acid nitric acid method

    HJ / t298 technical specification for identification of hazardous wastes

    3. Identification criteria

    If the content of any hazardous component in the leaching solution of solid waste prepared according to HJ / T 299 exceeds the concentration limit value listed in Table 1, the solid waste is determined to be hazardous waste with leaching toxicity characteristics.

    Table 1 standard values of leaching toxicity identification

    Serial number Hazardous components project Concentration limit of hazardous components in leaching solution (mg / L) Analysis method
    Inorganic elements and compounds
    one Copper (in total copper) one hundred Appendix A, B, C, D
    two Zinc (based on total zinc) one hundred Appendix A, B, C, D
    three Cadmium (based on total cadmium) one Appendix A, B, C, D
    four Lead (based on total lead) five Appendix A, B, C, D
    five Total chromium fifteen Appendix A, B, C, D
    six Chromium (VI) five GB/T 15555.4-1995
    seven Alkyl mercury No detection 1 GB/T 14204-93
    eight Mercury (as total mercury) zero point one Appendix B
    nine Beryllium (based on total beryllium) zero point zero two Appendix A, B, C, D
    10% Barium (based on total barium) one hundred Appendix A, B, C, D
    eleven Nickel (in total nickel) five Appendix A, B, C, D
    twelve Total silver five Appendix A, B, C, D
    thirteen Arsenic (based on total arsenic) five Appendix C, e
    fourteen Selenium (based on total selenium) one Appendix B, C, e
    fifteen Inorganic fluoride (excluding calcium fluoride) one hundred Appendix F
    sixteen Cyanide (as CN) five Appendix G
    Organic pesticides
    seventeen DDT zero point one Appendix H
    eighteen six six six zero point five Appendix H
    nineteen Dimethoate eight Appendix I
    twenty Parathion zero point three Appendix I
    twenty-one Parathion methyl zero point two Appendix I
    twenty-two malathion five Appendix I
    twenty-three Chlordane two Appendix H
    twenty-four Hexachlorobenzene five Appendix H
    twenty-five Toxaphene three Appendix H
    twenty-six Mirex zero point zero five Appendix H
    Non volatile organic compounds
    twenty-seven nitrobenzene twenty Appendix J
    twenty-eight Dinitrobenzene twenty Appendix K
    twenty-nine P-nitrochlorobenzene five Appendix L
    30% 2,4-dinitrochlorobenzene five Appendix L
    thirty-one Pentachlorophenol and sodium pentachlorophenol (calculated by pentachlorophenol) fifty Appendix L
    thirty-two phenol three Appendix K
    thirty-three 2,4-dichlorophenol six Appendix K
    thirty-four 2,4,6-trichlorophenol six Appendix K
    thirty-five Benzo (a) pyrene zero point zero zero zero three Appendix K, M
    thirty-six Dibutyl phthalate two Appendix K
    thirty-seven Dioctyl phthalate three Appendix L
    thirty-eight Polychlorinated biphenyls zero point zero zero two Appendix n
    Volatile organic compounds
    thirty-nine benzene one Appendix o, P, q
    forty toluene one Appendix o, P, q
    forty-one ethylbenzene four Appendix p
    forty-two xylene four Appendix o, P
    forty-three chlorobenzene two Appendix o, P
    forty-four 1,2-dichlorobenzene four Appendix K, O, P, R
    forty-five 1,4-dichlorobenzene four Appendix K, O, P, R
    forty-six acrylonitrile twenty Appendix o
    forty-seven Chloroform three Appendix Q
    forty-eight carbon tetrachloride zero point three Appendix Q
    forty-nine Trichloroethylene three Appendix Q
    fifty Tetrachloroethylene one Appendix Q
    Note 1: "Do not detect" nail base mercury < 10% ng / L, ethyl mercury < 20 ng / L.

    1. Sludge

    sludge It is the product of sewage treatment and a very complex heterogeneous body composed of organic debris, bacteria, inorganic particles and colloidal sludge. The main characteristics of sludge are high water content (up to 99%), high organic matter content, easy to rot and stink, and the particles are fine, the specific gravity is small, and it is colloidal liquid. It is a thick substance between liquid and solid, which can be transported by pump, but it is difficult to separate solid from liquid by sedimentation.

    By source It mainly includes domestic sewage sludge, industrial wastewater sludge and water supply sludge. According to the treatment method and separation process, it can be divided into primary sediment sludge, humic sludge and concentrated sludge; according to the composition and properties of sludge, it can be divided into organic sludge and inorganic sludge, hydrophilic sludge and hydrophobic sludge.

    According to the current technical policy of urban sewage treatment and pollution prevention and control, the sludge produced by urban sewage treatment should be stabilized by anaerobic, aerobic and composting methods. Sanitary landfill can also be used for proper disposal. If the treated sludge meets the requirements of stability and harmlessness, it can be used in farmland; if it can not be used in farmland, it should be disposed by sanitary landfill according to relevant standards and requirements.

    2. Classification of sludge disposal in urban sewage treatment plant

    Serial number classification Range remarks
    one Land use of sludge Landscaping Substrate or fertilizer for afforestation, seedling raising and landscaping
    Land improvement Soil improvement materials for saline alkali land, sandy land and abandoned mine
    Agricultural use Agricultural fertilizer, farmland soil improvement materials
    two Sludge landfill Mixed landfill Mixed landfill in municipal solid waste landfill (including utilization of landfill cover materials)
    Separate landfill Landfill disposal is carried out in a landfill site specially for landfill sludge
    Special landfill Land reclamation and reclamation
    three Utilization of sludge construction materials Cement additive A part of the raw material or additive used in making cement
    Brick making Some raw materials for brick making
    Preparation of lightweight aggregate Part of raw materials for making lightweight aggregate (ceramsite, etc.)
    Other building materials Some raw materials for making bio chemical fibreboard and other building materials
    four Sludge incineration Separate incineration Incineration in special sludge incinerator
    Mixed incineration with garbage Incineration with domestic waste
    Incineration by thermal power plant  
    Incineration with industrial boilers  
    Note: Agriculture includes the use of food chain and not into the food chain.


    3. Standard limits for sludge control

    Standard limits for pollutants control of sludge for agricultural use
    Serial number Control project Maximum allowable content (mg / kg dry sludge)
    On acid soil
    (pH<6.5)
    On neutral and alkaline soils
    (pH>=6.5)
    one Total cadmium five twenty
    two Total mercury five fifteen
    three Total lead three hundred one thousand
    four Total chromium six hundred one thousand
    five Total arsenic seventy-five seventy-five
    six Total nickel one hundred two hundred
    seven Total zinc two thousand three thousand
    eight Total copper eight hundred one thousand and five hundred
    nine boron one hundred and fifty one hundred and fifty
    ten Petroleum three thousand three thousand
    eleven Benzo (a) pyrene three three
    twelve Polychlorinated dibenzo-dioxins / polychlorinated dibenzofurans
    (PCDD / PCDF unit: ng toxic unit / kg dry sludge)
    one hundred one hundred
    thirteen Adsorbable organic halide (AOX) (calculated by CL) five hundred five hundred
    fourteen Polychlorinated biphenyls (PCB) zero point two zero point two
    Sludge stabilization control index
    Stabilization method Control project Control index
    anaerobic digestion Degradation rate of organic matter >40
    Aerobic digestion Degradation rate of organic matter >40
    Aerobic composting Moisture content (%) <65
    Degradation rate of organic matter >50
    Mortality rate of helminth eggs >95
    Fecal coliform count >0.01

    surface water It is the general name of four kinds of water bodies: River, glacier, lake and swamp. It is one of the important sources of water for human life. However, with the intensification of human economic activities, the development of industrial production and the prosperity of social economy, a large number of industrial wastewater and urban domestic sewage are discharged into the water body while a large amount of energy is consumed. The surface water pollution is becoming increasingly serious, which increasingly threatens the safety and health of human beings.

     Surface water detection

    Surface water pollution It mainly comes from industrial wastewater and domestic sewage. The composition of wastewater is complex, containing various organic pollutants and inorganic pollutants, as well as a large number of pathogens in hospital sewage. Different water bodies have different pollution characteristics. River pollution changes with runoff, and pollutants diffuse rapidly; pollutants in lakes (reservoirs) will stay and accumulate for a long time, which will cause water quality changes, mainly due to the eutrophication of water body caused by plant nutrients such as phosphorus and nitrogen; marine pollution sources are numerous and complex, with strong sustainability and wide range. Besides navigation boats and offshore oil wells, industrial waste water discharged from coastal and inland areas is also involved And urban sewage, eventually into the ocean, so marine damage to living things, damage to marine resources, has become an important aspect of water environmental protection. Protecting surface water resources and preventing surface water pollution are sacred and obligatory responsibilities of all mankind.

    Relevant standards

    In order to prevent and control water pollution, protect surface water quality, protect human health and maintain a good ecosystem, the state has formulated the environmental quality standard for surface water (GB 3838-2002), which stipulates the quality standard for surface water environment.

    Test items

    Water temperature, dissolved oxygen, volatile phenol, total nitrogen, animal and vegetable oil, petroleum, chemical oxygen demand, ammonia nitrogen, mercury, biochemical oxygen demand, total hardness, pH, copper, zinc, lead, cadmium, permanganate index, total phosphorus, fluoride, total arsenic, hexavalent chromium, cyanide, anionic surfactant, sulfide, fecal coliform, etc.

    On July 1, 2007, the National Standards Commission and the Ministry of Health jointly issued the mandatory national standards for drinking water quality (GB 5749-2006) and 13 national standards for sanitary inspection of drinking water. On October 1, 2009, drinking natural mineral water (GB8537-2008) was officially implemented. This is the first time in 21 years that the national standard for drinking water was revised in 1985.

     Detection of drinking water

    Xi'an Ruipu detection can provide professional drinking water quality testing service in accordance with the latest standard of "sanitary standard for drinking water" (GB 5749-2006). If you have testing requirements on drinking water, please contact us.

    Major changes in the new standard

    The number of water quality indicators increased from 35 to 106

    (2) microbial indicators increased from 2 to 6, including Escherichia coli, thermotolerant coliform, Giardia and Cryptosporidium, and revised the total coliform group;

    The number of disinfectants for drinking water increased from 1 to 4, adding monochloramine, ozone and chlorine dioxide;

    The toxicity indexes of inorganic compounds increased from 10 to 21, including bromate, chlorite, chlorate, antimony, barium, beryllium, boron, molybdenum, nickel, thallium and cyanogen chloride, and revised arsenic, cadmium, lead and nitrate;

    Among the toxicological indexes, organic compounds increased from 5 to 53

    Formaldehyde, trihalomethane, dichloromethane, 1,2-dichloroethane, 1,1,1-trichloroethane, tribromomethane, dichlorodibromomethane, dichloromonochloromethane, epichlorohydrin, vinyl chloride, 1,1-dichloroethylene, 1,2-dichloroethylene, trichloroethylene, tetrachloroethylene, hexachlorobutadiene, dichloroacetic acid, trichloroacetic acid, Trichloroacetaldehyde, benzene, toluene, xylene, ethylbenzene, styrene, 2,4, 6-trichlorophenol, chlorobenzene, 1,2-dichlorobenzene, 1,4-dichlorobenzene, Trichlorobenzene, di (2-ethylhexyl) phthalate, acrylamide, microcystin LR, fenazone, chlorothalonil, deltamethrin, dimethoate, 2,4-dichlorobenzene, Trichlorobenzene, chloramphenicol, chloramphenicol, 2,4-dichlorobenzene, 1,2-dichlorobenzene, 1,4-dichlorobenzene, Trichlorobenzene, 1,4-dichlorobenzene, Trichlorobenzene, 4-D, heptachlor, hexachlorobenzene, lindane, malathion, parathion, methyl parathion, pentachlorophenol, atrazine, carbofuran, chlorpyrifos, dichlorvos and glyphosate were revised;

    Sensory properties and general physical and chemical indexes increased from 15 to 20

    Oxygen consumption, ammonia nitrogen, sulfide, sodium, aluminum; turbidity was revised;

    The total alpha radioactivity was revised in the radioactivity index.

    industrial waste water It is the waste water discharged from the process of production, and it is an important cause of environmental pollution, especially water pollution. Therefore, industrial wastewater must reach a certain standard before discharge or into the sewage treatment plant for treatment.

     Waste water detection

    Relevant standards

    Industrial wastewater discharge standards are also formulated according to the industry

    ■ discharge standard of water pollutants for paper industry (GB3544-2008)

    ■ discharge standard for oily wastewater from offshore oil development industry (gb4914-2008)

    ■ discharge standard of water pollutants for textile dyeing and finishing industry (GB4287-92)

    ■ discharge standard of water pollutants for meat processing industry (gb13457-92)

    ■ discharge standard of water pollutants for synthetic ammonia industry (gb13458-2001)

    ■ discharge standard of water pollutants for iron and steel industry (gb13456-92)

    ■ discharge standard of water pollutants for space propellant (GB 14374-93)

    ■ discharge standard of water pollutants for ordnance industry (gb14470.1-14470.3-2002)

    ■ discharge standard of water pollutants for phosphate fertilizer industry (gb15580-95)

    ■ discharge standard of water pollutants for caustic soda and PVC industry (gb15581-95)

    ■ discharge standard of water pollutants for saponin industry (GB 20425-2006)

    ■ emission standard of pollutants for coal industry (GB 20426-2006)

    Industrial wastewater monitoring service project

    Category I pollutants

    Serial number Contaminants Maximum allowable emission concentration
    one Total mercury zero point zero five
    two Alkyl mercury No detection
    three Total cadmium zero point one
    four General brand one point five
    five Hexavalent chromium zero point five
    six Total arsenic zero point five
    seven Total lead one
    eight Total nickel one
    nine Benzo (a) pyrene 0.000 03
    ten Total beryllium zero point zero zero five
    eleven Total silver zero point five
    twelve Total alpha radioactivity 1 Bq/L
    thirteen Total beta radioactivity 10 Bq/L


    Category II pollutants

    PH, chroma, suspended solids, BOD5, CODCr, petroleum, animal and vegetable oil, volatile phenol, total cyanide, sulfide, ammonia nitrogen, fluoride, anionic surfactant, copper, zinc, fecal coliform, etc.

    Drinking Water In order to ensure the safety of drinking water, the National Health Department has issued strict regulations to strengthen the monitoring and management of drinking water quality. Various laws and regulations have clear requirements on water quality sampling point location, inspection items and monitoring frequency of various water supply facilities, especially secondary water supply facilities.

     Secondary water supply detection

    Inspection requirements for secondary water supply

    The state health department clearly stipulates that the responsible unit of water supply shall regularly inspect the water quality and register the inspection results, and the water quality inspection shall be undertaken by a third party with inspection qualification.

    one The sampling points are set at the raw water inlet, equipment outlet and terminal water.

    two Water quality inspection items:

    (1) Required items: chroma, pH, turbidity, odor and taste, visible substances, sulfate, chloride, ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, volatile phenols, oxygen consumption, total hardness, iron, manganese, copper, lead, total bacterial colony, total coliform, heat-resistant coliform, Escherichia coli.

    (2) Optional test items: if necessary, relevant test items and disinfection by-products can be added according to the type of water tank, disinfection method and other factors.

    3. Monitoring frequency: once a year.

    1. Farmland irrigation water

    According to the use of irrigation water, Agricultural irrigation water There are two types of water quality requirements: A class It refers to the irrigation area where industrial wastewater or urban sewage is the main source of agricultural water and is used for a long time. Irrigation amount: paddy field 800 m3 / mu a year, dry land 300 m3 / mu a year. Class II It refers to the irrigation area where industrial wastewater or urban sewage is used as the supplementary water source of agricultural water, and mixed irrigation with sewage is implemented. Its dosage is not more than half of the first class.

     Farmland irrigation water

    2. Sources of irrigation water for farmland

    Surface water, ground water, treated urban sewage and industrial wastewater with similar quality to urban sewage are used for farmland irrigation in China.

    3. Water quality standard limits for farmland irrigation

    Farmland irrigation water quality standard mg / L
    one Biochemical oxygen demand (BOD5) eighty one hundred and fifty eighty
    two Chemical oxygen demand (CODcr) two hundred three hundred one hundred and fifty
    three Suspended matter one hundred and fifty two hundred one hundred
    four Anionic surfactant (LAS) five eight five
    five Kjeldahl nitrogen twelve thirty thirty
    six Total phosphorus (as P) five ten ten
    seven Water temperature, ℃ thirty-five
    eight PH value 5.5~8.5
    nine Total salt content Areas with conditions of 1000 (non saline land area) and 2000 (saline alkali land area) can be appropriately relaxed
    ten chloride two hundred and fifty
    eleven sulfide one
    twelve Total mercury zero point zero zero one
    thirteen Total cadmium zero point zero zero five
    fourteen Total arsenic zero point zero five zero point one zero point zero five
    fifteen Chromium (VI) zero point one
    sixteen Total lead zero point one
    seventeen Total copper one
    eighteen Total zinc two
    nineteen Total selenium zero point zero two
    twenty fluoride 2.0 (high fluoride area) 3.0 (general area)
    twenty-one cyanide zero point five
    twenty-two Petroleum five ten one
    twenty-three Volatile phenol one
    twenty-four benzene two point five
    twenty-five Trichloroacetaldehyde one zero point five zero point five
    twenty-six Acrolein zero point five
    twenty-seven boron 1.0 (boron sensitive crops, such as potatoes, bamboo shoots, leeks, onions, oranges, etc.)
    2.0 (crops with strong boron tolerance, such as wheat, corn, green pepper, Chinese cabbage, green onion, etc.)
    3.0 (crops with strong boron tolerance, such as rice, radish, rape, cabbage, etc.)
    twenty-eight Number of fecal coliforms, number / L ten thousand
    twenty-nine Number of Ascaris eggs, eggs / L two

    air pollution It usually refers to the phenomenon that some substance enters into the atmosphere due to human activities and natural processes, showing sufficient concentration and reaching enough time, thus endangering human comfort, health and welfare or endangering the environment.

     Ambient air detection

    With the rapid development of China's economy and society, coal based energy consumption has risen sharply, the number of motor vehicles has increased sharply, the emissions of nitrogen oxides (NOx) and volatile organic compounds (VOCs) have increased significantly in the economically developed areas, the pollution of ozone (O3) and fine particulate matter (PM2.5) has intensified, the haze phenomenon has occurred frequently, and the visibility has been reduced. Environmental pollution is becoming more and more serious in Japan, especially air pollution, which seriously affects people's physical and mental health, public safety and social stability.

    According to the survey Nowadays, air pollution is the main cause of premature death and health problems of human beings, especially children. Particulate pollution in the air can cause about 1.15 million deaths a year. Surface ozone can cause 700000 deaths from respiratory diseases every year, more than 75% of which occur in Asia. The impact of air pollution on human life is huge, so it is of great significance to carry out environmental air quality monitoring activities.

    In order to speed up the air pollution control in China and effectively protect the people's health, the Ministry of Environmental Protection approved and issued the new "ambient air quality standard" (GB 3095-2012) in 2012.

    Relevant standards

    Ambient air quality standard GB 3095-2012

    Test items

    Sulfur dioxide, nitrogen oxides, total suspended particulates (TSP), nitrogen dioxide, inhalable particles (PM10), inhalable particles (PM2.5), fluoride, lead, ozone, carbon monoxide

    Indoor environment quality It is closely related to people's health. People spend 80% of their life indoors. Studies have shown that indoor environmental pollution is several times higher than outdoor. In recent years, decoration pollution, which is harmful to health, has caused an increase in morbidity and mortality of the global population. The reason is that the building materials used in the newly built and rebuilt buildings contain harmful substances, which seriously exceed the standard. Poor construction quality will cause air pollution in the indoor environment. Children, pregnant women and chronic patients, because they stay indoors longer than other people, are more exposed to indoor air pollution, especially children, who are more vulnerable to indoor air pollution than adults. one side Children's body is growing and developing, and their breathing capacity is nearly 50% higher than that of adults, on the other hand Children spend 80% of their time indoors. The World Health Organization announced that 100000 people die of asthma every year because of indoor air pollution, and 35% of them are children. The prevalence of asthma in children in China is 2% - 5%, and 85% of them are under the age of 5.

     Indoor air detection

    From the current detection and analysis Of indoor air pollutants Main sources There are the following aspects: building and interior decoration materials, outdoor pollutants, combustion products and human activities. Among them, the pollution of indoor decoration materials and furniture is the main aspect of indoor air pollution.

    The national Department of health, construction and environmental protection once conducted a spot check on interior decoration materials. The results showed that 68% of the indoor decoration materials were contaminated by poisonous gases, and these decorative materials would emit more than 300 volatile organic compounds. Among them, formaldehyde, ammonia, benzene, toluene, xylene, volatile organic compounds and radioactive gas radon can cause headache, nausea and vomiting, convulsions, dyspnea, etc. repeated contact can cause allergic reactions, such as asthma, allergic rhinitis and dermatitis, Long term exposure can lead to cancer (lung cancer, leukemia) or abortion, fetal malformation and growth retardation. Therefore, only by accurately evaluating the quality level of indoor environment and optimizing the indoor environment can the broad masses of people truly live and work in peace and contentment.

    Service scope:

    Undertake the social commission test, and carry out indoor environmental detection for indoor pollution after decoration

    Undertake the indoor air quality inspection of civil construction project completion acceptance

    Provide consulting services on indoor environmental protection, indoor environmental testing and decoration pollution

    Test items

    Code for indoor environmental pollution control of civil building engineering (GB 50325-2010): formaldehyde, benzene series, TVOC, radon, ammonia;

    Indoor air quality standard (GB / T 18883-2002): formaldehyde, toluene, benzene, relative humidity, temperature, xylene, TVOC, carbon monoxide, ammonia, radon, sulfur dioxide, nitrogen dioxide, etc.

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