Environmental testing refers to the third-party inspection to determine the environmental pollution status and environmental quality by measuring the indicators reflecting the environmental quality. It mainly includes the detection of physical indicators, chemical indicators and ecosystem. In this article, we talk about everything you should know about the third party environmental inspection.
It mainly uses modern scientific and technological means such as chemistry, physics, biology, medicine, telemetry, remote sensing and computer to detect various marker data reflecting environmental quality and its change trend, so as to make a comprehensive evaluation of environmental quality. It includes the detection of chemical pollutants and the detection of physical (energy) factors such as noise, vibration, heat energy, electromagnetic radiation and radioactivity; It also includes the biological detection of various reactions and information sent by organisms due to changes in environmental quality, as well as the ecological test of observing the changes of regional community and population migration.
Environmental testing items:
1.Water / waste water / drinking water (odor and taste, turbidity, transparency, pH value, filterable residue, conductivity, acidity, alkalinity, sulfate, chemical oxygen demand, soluble orthophosphate, nitrate nitrogen, total bacteria, total coliform, heat-resistant Escherichia coli, chloride, fluoride, heavy metals [arsenic, barium, beryllium, calcium,, cadmium, lead, zinc, copper, iron, manganese, nickel, potassium, sodium, magnesium, cobalt, strontium, titanium, aluminum, vanadium, chromium], nitrite, nitrobenzene, water temperature, chromaticity, suspended solids, dissolved oxygen, potassium permanganate index, biochemical oxygen demand, total phosphorus, total nitrogen, ammonia nitrogen, hexavalent chromium, mercury, total hardness, volatile phenol, petroleum, animal and vegetable oil, benzene series, Formaldehyde, BHC, anionic surfactant, sulfide, aniline, total chlorine, free chlorine, acrylonitrile, chlorobenzene, visible to the naked eye, bromate, carbon tetrachloride, etc.);
2.Air and exhaust gas (sulfur dioxide, nitrogen oxides, fluoride, ammonia, hydrogen cyanide,,, total suspended particles, respirable particles, mercury and its compounds, lead and its compounds, arsenic and its compounds, nickel and its compounds, tin and its compounds, selenium and its compounds, manganese and its compounds, cadmium and its compounds, copper and its compounds, zinc and its compounds, chromium and its compounds, chromic acid mist) , smoke or particulate matter, smoke blackness, cooking fume, sulfuric acid fog, volatile halogenated hydrocarbons, total hydrocarbons, non methane total hydrocarbons, benzene series, acrylonitrile, total volatile organic compounds, formaldehyde, ozone, temperature, relative humidity, air flow rate, total number of colonies, carbon dioxide, vinyl chloride, carbon monoxide, cumene, methane, aniline, phenols, asphalt oil, benzopyrene, Oil and gas concentration, liquid resistance, tightness, gas-liquid ratio, volatile organic compounds, methanol, acetone, hydrogen sulfide, radon, air pressure, fresh air volume, dust reduction, dust, asbestos fiber, etc.);
3. Soil, sediment and solid waste (BHC, arsenic, pH value, organic matter, chloride ion, total chromium, copper, zinc, lead, nickel, magnesium, calcium, mercury, etc.);
4. Noise (industrial enterprise boundary noise, social life noise, construction noise, urban area environmental noise, occupational noise, airport noise);
5. Physical factors of environmental monitoring (illuminance, high temperature, ultraviolet, high frequency electromagnetic field, UHF radiation, microwave radiation, power frequency electric field, etc.).
Role of environmental testing:
1. Contribute to the healthy development of environmental protection;
2. Timely monitor the sudden pollution situation;
3. Bring scientific basis to environmental protection standards.
As a part of environmental protection, environmental testing not only provides scientific basis for environmental protection, but also provides specific development direction for environmental protection and promotes the development of environmental protection.