Costa Rica agrochemical drift concerns
Costa Rica's authorities should focus on modern pesticides to tackle environmental drift problems, a University of Toronto (Canada) study recommends. The researchers found that despite scarce use or remains of the older persistent organic pollutant pesticides (POP) in the country, there were "surprisingly high levels" of such chemicals transported into its protected rainforests. Pesticides "in current use" are of greatest concern, the study says. The research team measured pesticide levels in the air and ground at 23 sites across the country. The Environmental Science and Technology journal published the results earlier this year.