Abstract
A geochemical analysis of 11 chemical elements in stream sediments in the vicinity of a pig farm shows that geochemical exploration methods can be used for regional environmental monitoring of organic pollution. In a 5-sq-mi (12.95 km 2 ) area in southern Ontario, contaminated stream sediments showed definite increases in Mg, Ca, Na, K, and Zn. Changes in Cu content were inconclusive; Pb, Co, Ni, Fe, and Mn showed background averages. The study showed that stream sediments are affected by large-scale agricultural operations within a short period of time. It is conclusive that ground water will be affected as contamination continues.
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