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Photos: Polluted cities see clean air and water amid coronavirus shutdown

A deserted view of India Gate, as India remains under lockdown due to the coronavirus (COVID-19) pandemic on April 09, 2020 in New Delhi, India. The air and water quality in the city has improved because of lockdown in India. (Yawar Nazir/Getty Images)

A soldier waits on a street near India Gate in heavy smoggy conditions in New Delhi on Dec. 6, 2019. (Jewel Samad/Agence France-Presse via Getty Images)

A couple walks through Kenneth Hahn State Recreation Area as downtown Los Angeles is seen in the background, Friday, March 27, 2020, in Los Angeles. Southern Californians who venture outside this week will see excellent air quality, resulting from business closures during the coronavirus pandemic and recent rain, experts said. (AP Photo/Mark J. Terrill)

he buildings of downtown Los Angeles are partially obscured in the late afternoon on November 5, 2019 as seen from Pasadena, California. The air quality waspredited to be "unhealthy for sensitive groups" that day. (Mario Tama/Getty Images)

An aerial view of Paris taken from a balloon which measures air quality during a nationwide confinement to counter the Covid-19, Wednesday, April 8, 2020. (AP Photo/Christophe Ena)

A haze of pollution is seen over the Eiffel Tower and the buildings of the city of Paris on Dec. 16, 2016. (Philippe Lopez/AFP via Getty Images)

Chinese commuters wear protective masks as they cross a footbridge during rush hour in the central business district on April 7, 2020, in Beijing, China. The capital city has reported cleaner air quality. (Kevin Frayer/Getty Images)

Buildings are seen on a polluted day in Beijing on Jan. 18, 2020. (Nicolas Asfouri/Agence France-Presse via Getty Images)

The downtown Phoenix skyline is easier to see, Tuesday, April 7, 2020, as fewer motorists in Arizona are driving, following the state stay-at-home order due to the coronavirus, and it appears to be improving the air quality and decreasing the effects vehicle emissions have on the environment. (AP Photo/Ross D. Franklin)

View of the downtown Phoenix, Arizona city skyline as seen from South Mountain Park, Aug. 28, 2018. (Robyn Beck/Agence France-Presse via Getty Images)

Water in Yamuna river looks cleaner as industries remain shut due to lockdown, as India remains under an unprecedented lockdown over the highly contagious coronavirus (COVID-19) on April 8, 2020 in New Delhi, India. (Yawar Nazir/Getty Images)

Water in Yamuna river looks cleaner as industries remain shut due to lockdown, as India remains under an unprecedented lockdown over the highly contagious coronavirus (COVID-19) on April 08, 2020 in New Delhi, India. (Yawar Nazir/Getty Images)

The San Gabriel Mountains are seen from the Interstate 10 in East Los Angeles, Monday, March 30, 2020. Excellent air quality has resulted from business closures during the coronavirus pandemic and recent rain. The area's famous freeways have been nearly empty, but experts say the lack of cars is contributing only a small amount to the clear skies. Researchers are analyzing just how much emissions have dropped. (AP Photo/Damian Dovarganes)

Pairs of hikers maintain social distance as they mingle at Vista View Point in Griffith Park in Los Angeles on March 20, 2020 as storm clouds pass through. Southern Californians who venture outside this week will see excellent air quality, resulting from business closures during the coronavirus pandemic and recent rain. The area's famous freeway are empty but experts say the lack of cars is contributing only a small amount to the clear skies. (AP Photo/Chris Pizzello)