A lot of lead from gasoline, house paint and industrial emissions has ended up in soil, and it poses serious health risks.
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The new level won’t trigger automatic cleanups, but it sets a lower threshold for taking precautions to reduce lead exposure.
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Soil underpins Australia’s economy – yet since Europeans arrived, the natural asset has steadily been degraded. A new national plan aims to change that.
A decommissioned pumpjack at a well head on an oil and gas installation near Cremona, Alta., October 2016.
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More oil and gas wells risk becoming orphaned given the long-term downward trend in the industry.
Phytoremediation uses plants to clean up toxic pollutants.
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Scientists are finding ways to generate something useful from the pollution in our environment.
A freight train curves past a line of waiting tanker cars in California.
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The “dig and dump” approach to cleaning oil and gasoline from soil is destructive. Why not nudge the soil’s natural cleaners to do the job?