Format

Send to

Choose Destination
Environ Pollut. 2007 Jul;148(1):10-20. Epub 2007 Jan 17.

The flux of chloroform and tetrachloromethane along an elevational gradient of a coastal salt marsh, East China.

Author information

1
Halophyte Research Lab, Department of Biology, Nanjing University, Nanjing, China.

Abstract

The fluxes of trichloromethane (CHCl(3), CM) and tetrachloromethane (CCl(4), TCM) were seasonally measured using static flux chambers over an annual cycle in a coastal salt marsh, East China. The salt marsh presented as a large sink for both the compounds in the growing season (from April to October), but it was a minor source for the gas species in the non-growing season. Generally, the cordgrass marsh acted as a sink of CM and TCM. The net consumption of CM and TCM observed in the study marsh may result from the high ambient atmospheric concentrations and enriched soil organic matter that result in anoxic sediments. Higher plants were suggested to be an important sink for CM and TCM in the growing season, but a net source in the non-growing season. However, the mechanism responsible for the plant removal process is not clear.

PMID:
17234312
DOI:
10.1016/j.envpol.2006.11.016
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center