Soil gas samplerIt is a professional instrument used to collect volatile gases in soil pores, widely used in fields such as soil environmental monitoring, agricultural ecological research, and pollution site investigation.

The core components of soil gas samplers are usually made of chemically stable materials to avoid reactions with gas components and ensure sample authenticity.

Operating standards:

Preparation before sampling: Clean equipment and tools, and prepare for entry. Cut small holes in the concrete surface of the pipeline area, connect the drill rod and drill bit, and drill to the predetermined depth.

Sampling process: Insert a sampling tube or probe into the soil, extract gas, and collect it into a sample bottle or sampling bag. To avoid atmospheric contamination, the pipeline should be "flushed" before sampling to remove any trapped air.

Sample preservation and transportation: Choose the appropriate preservation method based on the type of target pollutant.

Data analysis: Send the sample to the laboratory for analysis to obtain soil gas composition and concentration data.

　　Soil gas samplerApplication scenarios:

Ecological environment research: Monitoring of CO ₂ and CH ₄ emission fluxes from farmland and forest soils, studying soil carbon cycling.

Polluted site investigation: Sampling of harmful gases such as benzene, toluene, VOCs, etc. in the soil of industrial legacy sites to assess the scope of pollution.

Geological hazard warning: Monitoring of gases such as gas and hydrogen sulfide in the soil around mines and tunnels to prevent gas leaks.

Agricultural production monitoring: Sampling of soil ammonia and other pollutants in facility agriculture, optimizing fertilization plans.