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Dichloromethane (DCM, methylene chloride, or methylene bichloride) is an organochlorine compound with the formula C H 2 Cl 2. This colorless, volatile liquid with a chloroform -like, sweet odor is widely used as a solvent .
The benefits of SOM result from several complex, interactive, edaphic factors; a non-exhaustive list of these benefits to soil function includes improvement of soil structure, aggregation, water retention, soil biodiversity, absorption and retention of pollutants, buffering capacity, and the cycling and storage of plant nutrients.
Many organochlorine compounds have been isolated from natural sources ranging from bacteria to humans. [ 3 ] [ 4 ] Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids , terpenes , amino acids , flavonoids , steroids , and fatty acids .
Ancylobacter dichloromethanicus is an aerobic, Gram-negative bacteria from the family of Xanthobacteraceae which has been isolated from dichloromethane contaminated soil in Volgograd in Russia. [ 1 ] [ 4 ] [ 3 ] [ 5 ] Ancylobacter dichloromethanicus can use dichloromethane , methanol , formate and formaldehyde for its metabolism.
Environmental chemistry is used by the Environment Agency in England, Natural Resources Wales, the United States Environmental Protection Agency, the Association of Public Analysts, and other environmental agencies and research bodies around the world to detect and identify the nature and source of pollutants. These can include:
A.V. Sobisevich Participation of Soviet Scientists in the Soil Map of the World Project // Voprosy istorii estestvoznaniia i tekhniki. 2022. Vol. 43(1). Pp. 41–53. P. Schad: World Reference Base for Soil Resources - Its fourth edition and its history. In: Journal of Plant Nutrition and Soil Science 186, 2023, 151–163.
Soil morphology is the branch of soil science dedicated to the technical description of soil, [1] particularly physical properties including texture, color, structure, and consistence. Morphological evaluations of soil are typically performed in the field on a soil profile containing multiple horizons .
Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste .