Plants Have No Detectable Air Purification Effect

Despite the popular conception that plants are purifiers, plants have detectable effect on particle or gas pollutants, according to the latest test data from real-world homes.   Belief that plants are effective air purifiers is widespread. Arguably the most frequently cited evidence is the NASA study on plants. It feels scientific, authoritative. This page cites it, this page, this page.   […]

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What Would China’s Air Be Like If Everyone Stopped Driving?

The prestigious science publication Nature published a study that tested the air of Beijing, Xi’an, Shanghai, and Guangzhou to find out exactly what PM2.5 is made out of. They found that about 20% were chemicals like ammonium and chloride. Coal made up about 4% of PM2.5 in the different cities.     From that composition, the researchers could estimate […]

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New Data Shows Beijing’s Air Pollution Progress Reverses in March

After several months of progress cutting PM2.5, Beijing saw a sharp reversal this March, according to the latest data.   In years past, Beijing’s particulate pollution normally peaks in January and decreases each month closer to summer.     However, this year has seen the exact opposite trend, with PM2.5 increasing 265% from January to March.     […]

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Truth or Bullshit: Eating Broccoli Protects Against Pollution

Although many natural remedies are based more on intuition than science, a surprisingly rigorous set of studies from different research labs is finding that eating broccoli helps our bodies fight the effects of air pollution.   Scientists have isolated the compound thought to help the body remove pollutants like benzene and fight inflammation. The compound, sulforaphane, […]

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