Huge firework displays will mark 4 July in the US, but the nation's air quality will suffer
Millions of fireworks are set off each year to mark Independence Day in the US, causing air pollution to spike. Should you be worried?| www.bbc.com
Millions of fireworks are set off each year to mark Independence Day in the US, causing air pollution to spike. Should you be worried?| www.bbc.com
Researchers developed an imaging technique that detected thousands of tiny bits of plastic in common single-use bottles of water.| National Institutes of Health (NIH)
