Abstract
An investigation of agricultural chemicals and chemical fertilizer used by golf links were carried out from June 1991 to May 1992. Immediately after or during the rainfall, sampling for drainage was started at 6 points of 3 golf links. About 15 agricultural chemicals, nitrogen, phosphorus and potassium were analyzed. The following results were obtained. Nine agricultural chemicals including 3 herbicides (Propyzamide, Simazine, Napropamide), 4 bactericides (Flutoluanil Isoprothiolane, Captan, Tolclophos-methyl) and 2 insecticides (Diazinon, Fenitrothion) were detected. Detectable frequency was different at the 3 golf links and the 6 sampling points. The highest levels of agricultural chemicals were detected in June, and high levels of Flutoluanil, Isoprothiolane and Captan were detected. These concentrations were higher in September, and high levels of Propyzamide and Simazine were detected, and each maximum level was over 8 and 3μgL-1. Many concentrations were from 0.1 to 1.0μgL-1. Every component of the chemical fertilizer found in the drainage water from golf links were at high levels in comparison with rivers. Changes in these concentrations were closely related to time of fertilizer application for lawn management.
