air pollution


¿Quién respira el aire más contaminado por emisiones de vehículos en California?

, Sr. Vehicles Engineer

Existe una gran disparidad en la exposición a la contaminación entre los grupos raciales y étnicos de muchos lugares de EE.UU. Vivimos en una sociedad desigual donde la contaminación del aire es una de las desigualdades menos visibles, pero que impacta tremendamente  la salud humana. Cuantificamos la exposición a la contaminación vehicular en California por grupo demográfico y encontramos que afroamericanos, latinos y asiáticos, así como las personas de bajos ingresos están mucho más expuestos que las comunidades blancas y afluentes. Read more >

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Photo: Eric Sonstroem/Flickr

Air Pollution from Vehicles in California: People of Color Bear the Biggest Burden

, senior engineer, Clean Vehicles

Cars, trucks, and buses are a significant source of air pollution in California. But how much pollution is attributable to these vehicles and who is exposed to this pollution? To help answer these questions, I’ve used a computer model to estimate the amount of fine particulate matter air pollution (known as PM2.5) created by using on-road vehicles (cars, trucks, and buses). The findings are troubling, both because they show that people of color are exposed to higher levels of harmful air pollution and because this result is likely not to be a surprise to many Californians (full report available in English and Spanish). The study supports the claims many have been making for decades – that on average, African American, Latino, and Asian Californians are exposed to more PM2.5 pollution from cars, trucks, and buses than white Californians. In fact, these groups are exposed to PM2.5 pollution 43, 39, and 21 percent higher, respectively, than white Californians.

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Photo: Eric Sonstroem/Flickr
Photo: Jimmy O'Dea
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Scientists to EPA: Stop Sidelining Science in the Air Pollution Standard Update for Particulate Matter

, Research Director, Center for Science and Democracy

More than 200 air quality and public health experts have penned a letter expressing concern about the limited scientific input into an air pollutant standard update. The 206 scientists are deeply troubled by recent actions of the EPA on its update to the health-based standard for particulate matter, a pollutant comprised of tiny solid particles that has been linked to respiratory and cardiovascular effects and early death. Read more >

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No, Natural Gas Power Plants Are Not Clean

You may have heard that natural gas is “clean.” Compared to coal, natural gas produces less global warming emissions and air pollution. But coal is just about the dirtiest way to produce electricity, so almost anything will seem cleaner in comparison. The fact of the matter is that natural gas power plants still produce a significant amount of air pollution, and that’s a problem.

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public domain
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Can the EPA Protect Us from Ozone and Particulate Pollution Without Its Experts? What to Watch

, Research Director, Center for Science and Democracy

This week, the EPA announced that its Clean Air Scientific Advisory Committee (CASAC) alone would be reviewing upcoming ozone and particulate matter reviews. On October 10, the EPA nixed its ozone and particulate matter review panels—breaking with EPA’s use of expert science advisers for ambient air quality decisions since the 1970s and consistent with this administration’s trend of abandoning science advice. Read more >

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