Soil-water interface samples must be analyzed for which substances?

The analysis of soil-water interface samples is crucial for understanding contamination and the presence of hazardous substances in the environment, especially when it comes to heating oil tanks. The selected option, which includes THP-Dx and BETX, represents compounds commonly found in petroleum-related products.

THP-Dx (toxic hydrocarbons - polynuclear aromatic compounds and derivatives) and BETX (Benzene, Ethylbenzene, Toluene, and Xylene) are important indicators of petroleum contamination. Analyzing samples for these compounds helps assess the extent of contamination, understand the potential risks to human health and the environment, and inform necessary remediation strategies.

In summary, focusing on THP-Dx and BETX in soil-water interface samples is essential for identifying and managing pollutants associated with heating oil tanks and ensuring compliance with environmental regulations.