Testing

According to the corresponding national standards, carry out the monitoring of the environmental air quality, the environmental quality of surface water and groundwater, the environmental quality of soil, and the noise. , Airports, and transportation industry projects to conduct on-site environmental quality monitoring.

Environmental monitoring is to track changes in environmental quality and determine the level of environmental quality through the detection of the content and emissions of various substances that have an impact on humans and the environment, and to provide the basis and guarantee for environmental management and pollution control. Simply put, understanding the environmental level and conducting environmental monitoring are the prerequisites for all environmental work. Ecological environment monitoring is the basis of ecological environmental protection.

Environmental monitoring usually includes processes such as background investigation, determining the plan, optimizing the location, on-site sampling, sample transportation, experimental analysis, data collection, and analysis and synthesis. In general, it is the process of planning-sampling-analysis-comprehensive information acquisition.

The main service items include: environmental impact assessment monitoring & pollution source monitoring, indoor air, oil and gas recovery, electromagnetic radiation testing, clean room testing, public health testing, etc. The details are as follows:

1. Environmental Impact Assessment Monitoring & Pollution Source Monitoring

1. Ambient air

Standards: "Ambient Air Quality Standard", "Comprehensive Emission Standard of Air Pollutants"

Detection items: temperature, relative humidity, flow rate, S02, HCL, CO, hydrogen, ozone, formaldehyde, TSP, PM10, PM2.5, TVOC, benzene, toluene, xylene and other benzene series, HF, HCN, sulfuric acid mist, Methyl mercaptan, odor concentration, styrene, isopropanol, phenylethyl benzene, heavy metals (tin, lead, mercury...), non-methane total hydrocarbons, oil fume, smoke dust, smoke blackness, etc.

2. Water quality

Standards: "Sanitary Standards for Drinking Water", "Environmental Quality Standards for Surface Water", "Environmental Quality Standards for Groundwater",

"Comprehensive Wastewater Discharge Standard", "Special Industrial Water Pollutant Discharge Standards for Various Industries"

Test items: PH, total hardness (calculated as CaC03), SS, total dissolved solids, COD, permanganate index, BOD5, volatile phenol, fluoride, sulfide, nitrate nitrogen, nitrite ammonia, ammonia ammonia , Arsenic, mercury, iron, manganese, hexavalent chromium, cadmium, petroleum, total number of bacteria and total coliforms, such as cross-sectional flow, velocity, river depth, river width, etc.

3. Soil, fertilizer, solid waste

Standards: "Soil Environmental Quality Standard", "Solid Waste Leaching Toxicity Leaching Method"

Test items: Cd, Hg, As, Pb, Cr, Ni and other metal elements full analysis; BHC, DDT, PH, cation exchange capacity, pesticide residues, organic matter, moisture, total phosphorus, total potassium, available phosphorus, potassium , Sulfide, organic mercury, water-soluble salt, etc., hazardous waste leaching toxicity, corrosiveness, acute toxicity preliminary screening, etc.

4. Noise

Standards: "Acoustic Environmental Quality Standards", "Environmental Noise Emission Standards at Boundaries of Industrial Enterprises"

Inspection items: noise at the boundary of the factory, area noise, traffic noise, noise at the boundary of the construction plant, etc.

5. Vibration

According to the standard: Environmental Vibration Monitoring Technical Specification (HJ 918-2017)

Environmental vibration, road vibration, railway vibration, etc.

2. Indoor air

According to the standard: GB/T 18883-2002, indoor ambient air quality monitoring technical specifications (HJ/T 167-2004)

Test items: temperature, relative humidity, air flow rate, fresh air volume, sulfur dioxide, nitrogen dioxide, carbon monoxide, carbon dioxide, ammonia, ozone, formaldehyde, benzene, toluene, xylene, benzo[a]pyrene, inhalable particulate matter, TVOC, The total number of colonies, radon 222Rn.

3. Oil and gas recovery

Standard: Emission Standard of Air Pollutants for Gas Stations (GB 20952-2020)

Inspection items: oil and gas leakage concentration, gasoline leakage, concentration after treatment device, oil and gas collection system pressure, airtightness, liquid resistance, gas-liquid ratio, oil and gas concentration, etc.

Four, electromagnetic radiation detection

Standards: "Technical Specification for Environmental Evaluation of Electromagnetic Radiation", "Measurement Methods of Radio Interference", "Electromagnetic Radiation Detection Instruments and Methods", "Methods for Monitoring Electromagnetic Radiation of Mobile Communication Base Stations (HJ972—2018)", "Electromagnetic Radiation Environmental Impact Assessment" Methods and Standards (HJ/T 10.3-1996)"

Test items: radio frequency electric field, magnetic field strength, power frequency electric field, power frequency magnetic field, radio interference, high frequency electromagnetic field, electric field strength, magnetic induction intensity, etc.

Five, clean room inspection

Clean room refers to the removal of particulates, harmful air, bacteria and other pollutants in the air within a certain space, and the indoor temperature and humidity, indoor pressure, air flow velocity and air distribution, noise, vibration, and illuminance, and static electricity are controlled within a certain range. Within the scope of the requirements, and given a specially designed room.

Test items: suspended particles, sedimentation bacteria, planktonic bacteria, temperature and humidity, number of air changes, wind speed, air volume, noise, illuminance, air flow pattern, air flow velocity, static pressure difference, self-cleaning time, efficient leak detection, etc.

Six, public health testing

1. According to the national health standards for public places, carry out environmental air testing in public places such as hotels, shopping malls, movie theaters, etc. The testing items include: microclimate (temperature and humidity, wind speed, etc.), carbon monoxide, carbon dioxide, formaldehyde, inhalable particulate matter, air The number of bacteria etc.

2. In accordance with the national health standards for public appliances in public places, the tests carried out on public appliances in hotels, hotels, public bathrooms and other public places. The test items include: total number of bacteria, coliforms, pathogenic bacteria, etc.