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Environmental policy

Environmental policy

Air-quality regulations shown to lower traces of airborne transition metals

06 Nov 2019
Image of industrial chimney stacks
Clean air: A decade ago concentrations of nickel and vanadium in port cities in the US were around five times higher than non-port cities but that the difference has now all but disappeared. (CC0/Pixabay/SD-Pictures)
When taking a deep breath you draw a range of gases into your lungs from oxygen and nitrogen to carb

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Kate Ravilious is a freelance science writer based in York, UK
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