Toxic Pollutant in the U.S.
Pesticide use in or near United States schools sickened more than 2,500 children and school employees over a five-year period, and though most illnesses were mild, their numbers have increased, a nationwide report found.
Sources include chemicals to kill insects and weeds on school grounds, disinfectants, and farming pesticides that drift in nearby schools according to a report by researchers at the National Institute for Occupational Safety and Health and their colleagues. Dr. Walter Alarcon, lead study author, said one of the largest recent incidents occurred in May when about 600 students and staff members were evacuated from an Edinburgh Texas, elementary school after pesticides sprayed on a cotton field drifted into the school’s air conditioning system. About 30 students and nine staff members developed mile symptoms, including nausea and headaches.
The authors tallied reports from three pesticide surveillance systems, including a national database of calls to poison control centers, and found that 2,593 students and school employees developed pesticide-related illnesses in the five years studied. Only three illnesses were considered severe and most of the illnesses were in children. The number affected each year climbed from 59 to 104 among preschoolers and from 225 to 333 among children age 6 to 17.
Tracking Pollution
Tracking pollution is totally dependent on Satellite data. The wind is blowing the pollution into the air and clouds transport it. A satellite system provides an unprecedented picture of where wind blown pollution comes from and how it travels around the world. In images and videos assembled from data collected by a satellite called Terra, a huge cloud of carbon monoxide can be seen mushrooming in Southeast Asia and wafting across the Pacific and over North America. Another can be seen erupting from the United States and blowing across Europe, and still others sprout from South America and Africa, caused by the massive burning of forest land.
You clearly see that air pollution is a global issue. Because carbon monoxide emissions are produced by virtually any burning, whether forest fires or car engines, it can be used as a tracer for all other pollutants emitted by such burning as oxides of nitrogen and the carbon dioxide that is blamed for global warming scientists said.
Lawnmowers, chain saws, weed trimmers, and leaf blowers emit large quantities of carbon monoxide and several smog-forming particulate-matter pollutants. Lawnmowers before 1996 had none of the emission control systems of cars, its pollution went directly into the air. Mowing with those gasoline-powered lawnmowers produced the equivalent pollution of driving a car for several hundred miles. It is estimated that backyard power tools produced 5 to 10 percent of all the nation’s smog-forming pollutants.
An Airplane burns fossil fuel and releases pollutants into the air from each of its several engines. In addition to emitting about 3 percent of all carbon dioxide due to human activities worldwide, plane engines also give off carbon particles, soot, sulfur dioxides, and nitrogen oxides. At present there are over ten thousand commercial jet aircraft worldwide. Twice that number is expected to be in the skies by the year 2010.
Forest Description
A rain forest is a moist densely wooded area usually found in a warm tropical wet climate. Annual rainfall is about 80 inches and sometimes ranges as high as 400 inches in some tropical rain forests. The average temperature in most rain forests is 80 F. Broadleaf evergreen trees, vines, sparse undergrowth, and nutrient poor soil are common