1. Increasing amounts of contamination are being blown over the Pacific sea to North America. Pollutants conveyed by the jet stream can reach the United States in days. Pollutants from Asia coming to the joined States are increasing at a rate of 5 percent to 10 percent a year. By some approximates 25 percent of the air contamination in Los Angeles arrives from China. American wellbeing agents find this figure alarming when is tacked up on contamination that already live in the joined States. Increases in amounts of ozone and fine particulate matter found in the ...