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Air pollution outside is easy to spot, hanging over the city, or sputtering from a tailpipe. But there's lot of indoor air pollution, too, even if it's not as obvious. It's caused by volatile organic compounds, or VOCs. They can come from building ma
发表于:2018-12-24 / 阅读(147) / 评论(0)
2016年Scientific American(八)月
2016年Scientific American(八)月
It's the fossilized resin of ancient pine trees. And trapped within it, are perfectly preserved souvenirs, each fragment helping to build a picture of an ancient world. This resin has also trapped som
发表于:2019-01-02 / 阅读(161) / 评论(0)
欧洲自然写真
欧洲自然写真
Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康
发表于:2019-02-07 / 阅读(179) / 评论(0)
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