30
Mar
(Beyond Pesticides, March 30, 2007) A committee of experts advising the United Nations Environment Programme and the Food and Agriculture Organization (FAO) has recommended adding endosulfan and tributyl tin compounds (TBT) to a list of substances that are considered so harmful they can only be traded in special circumstances. On March 27, 2007, the United Nations said that the toxic chemicals would only be allowed to be exported to countries that have explicitly chosen to permit them, a measure aimed at protecting humans and the environment in developing countries. Endosulfan, a chemical sprayed onto food crops and cotton, and TBT, used in “antifouling paint” for ships’ hulls, are already banned in many countries. However, they may be traded freely in countries lacking tight environmental regulations. According to David Santillo who works at the research center for Greenpeace at Britain’s Exeter University, “It’s great that these two have been added to the list so countries have the choice whether to import them or not.” Endosulfan has been linked with testicular cancer, prostate cancer, breast cancer, and defects in male sex organs. According to a recent study conducted in Costa Rica’s mountain forests, findings show that surprisingly high concentrations of pesticides are […]
Posted in Chemicals, Endosulfan, International, Pesticide Regulation | No Comments »
27
Feb
(Beyond Pesticides, February 27, 2007) Pesticide run-off is polluting larger areas of the Great Barrier Reef than originally thought, leading scientists to call for better land care practices. For the first time a new series of satellite images show that sediment plumes, containing pesticides and other pollutants from Australian river systems, travel to the outer Great Barrier Reef, and beyond. Originally, it was thought that the plumes only affected the inner Great Barrier Reef Lagoon and the inner reef corals. The images, taken during the heavy rains in far north Queensland by the National Aeronautics and Space Administration’s MODIS satellite, show the pollutant plumes are travelling up to 135km offshore. Recent studies have shown agricultural chemicals are so poisonous to coral that it can prevent spawning, even when only present in minuscule amounts. This was found to consequently hinder the reef’s ability to regenerate and protect itself. Arnold Dekker, Ph.D., a scientist with the Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO), said the images would change the way scientists analysed reef pollution and that they showed land care practices needed to be improved in order to save the reef from destruction. “This is the first time it’s been really […]
Posted in International, Water, Wildlife/Endangered Sp. | No Comments »
13
Feb
(Beyond Pesticides, February 13, 2007) As Valentine’s Day approaches, dozens of roses and bouquets are being stocked at stores nationwide. The intentions may be sweet but many of the flowers are not — most of them have been treated with toxic chemicals. Pesticides are used on most conventionally grown flowers. A good portion of this use takes place in the waterlogged savannah surrounding the capital of Colombia, which has the world’s second-largest cut-flower industry after the Netherlands, producing 62 percent of all flowers sold in the United States. With 110,000 employees — many of them single mothers — and annual exports of US$1 billion, the industry provides an important alternative to growing coca, source crop of the Andean nation’s better known illegal export: cocaine. But these economic gains come at a cost to workers’ health and Colombia’s environment. Colombia’s flower exporters association has attempted to respond by launching the Florverde program, but with limited success; its members have reduced pesticide use by 38 percent since 1998, to an average of 97 kilograms (213 pounds) of active ingredient per hectare (2.4 acres) per year. However, 36 percent of the chemicals used by Florverde farms in 2005 were still listed as “extremely” […]
Posted in Alternatives/Organics, Disease/Health Effects, Holidays, International | 1 Comment »
18
Jan
(Beyond Pesticides, January 18, 2007) A new study conducted in Costa Rica’s mountain forests indicates that surprisingly high concentrations of pesticides are accumulating far above the low altitudes at which they are used. Previously thought to be safe from pesticides applied to distant agricultural areas, some remote mountain forests of Costa Rica were found to have pesticide levels almost ten times greater than those in low-lying areas closer to farms and plantations. The study, led by University of Toronto, Scarborough professor Frank Wania, Ph.D., measured air and soil pesticide levels at 23 sites across Costa Rica in order to produce a model to predict potential accumulation of chemicals at high altitudes. The insecticide endosulfan and the fungicide chlorothalonil were found in the largest concentrations, with up to 1 part per billion (ppb) of chlorothalonil and 3 ppb endosulfan in soil. The high concentrations can be explained by a process in which polluted air above the farms and plantations is pushed up into the mountains, where it then cools and becomes polluted rainwater or fog. The hydrophilic nature of modern pesticides makes the occurrence of this phenomenon much more likely; as Crispin Halsall, Ph.D., of Lancaster University (U.K.) explains, “Most currently […]
Posted in Chemicals, Chlorothalonil, Endosulfan, International, Water, Wildlife/Endangered Sp. | No Comments »
