A major study by Southland air quality officials has found that reductions in toxic emissions have cut residents’ cancer risk from air pollution on average by more than 50 percent since 2005.
“Air pollution controls on everything from cars to trucks to industrial plants have dramatically reduced toxic emissions in our region,” said Barry Wallerstein, executive officer of the South Coast Air Quality Management District. “However, remaining risks are still unacceptably high in some areas,” Wallerstein said. “We need to maintain our commitment to reducing toxic emissions so that everyone can breathe healthful air.“
MATES IV found that diesel particulate emitted from diesel-powered vehicles and equipment was responsible for 68 percent of the total cancer risk. Fully 90 percent of the risk is due to mobile sources, which includes everything from ocean-going ships and cars to trucks, locomotives, aircraft and construction equipment.
Air quality data and economic trends between 2004 and 2013 indicate that the reduction in toxic emissions and cancer risk was not due solely to the recession. From 2010 to 2013, for instance, the number of containers shipped through the ports of Los Angeles and Long Beach – a key indicator of goods movement activity – has rebounded, and yet toxic emissions during that period continued to decline.
Toxic air pollutants are specific hazardous chemicals that are known or suspected to cause cancer or other serious health effects. Health effects from other pollutants including ozone and fine particulates (PM2.5) are not addressed in the MATES studies and are assessed in the agency’s Air Quality Management Plans.
Source and Image Credit: South Coast AQMD
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