Insecticide contamination of Jamaican environment. IV. Transport of residues from coffee plantations in the Blue Mountains to coastal waters in eastern Jamaica

Researchers monitored residues of organochlorine and organophosphorus compounds in samples of plantation soils and samples of water, sediment, and fauna from three rivers and coastal waters in the Portland watershed of eastern Jamaica using gas chromatographic techniques. These monitoring activities were carried out on a monthly basis for a period of more than a year. None of the collected samples exhibited measurable levels of organophosphorus residues. Organochlorine residues fell below detection limits in Rio Grande. Values for the mean concentration of residues found in water, sediment, and fauna are reported for the Spanish River, Swift River, and in coastal waters.