In December 2014, NASA<\/a> released a similar picture highlighting the difference in pollution between India and Nepal.<\/p>\n The pictures get part of the story right. Pollution in North India may be\u00a0much higher than pollution in northern Nepal. 13 of the 20 most polluted cities in the world are in India<\/a>, with a large majority in northern\u00a0India. Though northern Nepal may have better air quality due to the Himalayas, Nepal as a whole may not be significantly better. \u00a0Yale’s Environmental Performance Index<\/a>, which compares air quality among 181 countries, ranked India at 178 and Nepal at 177 – both among the lowest in the world.<\/p>\n Nepal’s low rankings may stem from Kathmandu Valley, whose\u00a0bowl-shaped topography traps warm, polluted air\u00a0along with dust\u00a0and smog.\u00a0Though the government-installed air monitoring devices in Nepal have been out of order<\/a> since 2007, a Yale graduate student, Anobha Gurung, conducted PM2.5 tests in 2009. She found that in certain urban areas, traffic police were exposed to over 500 ug\/m3 of PM2.5 per hour – that’s over 200 times the World Health Organization’s\u00a0recommended level of 25 ug\/m3!<\/p>\n So overall, is Nepal’s air quality\u00a0that much better than\u00a0India as the pictures suggest? \u00a0Though northern Uttar Pradesh may be worse off\u00a0than northern Nepal, it’s hard to say. The limited data of Kathmandu and northern Indian cities suggests people may be breathing similar levels of pollution, but we won’t really know\u00a0until those air monitoring devices in Nepal start working again!<\/p>","protected":false},"excerpt":{"rendered":" Much too visible, according to Astronaut Scott Kelly, who is finishing up his\u00a0year onboard\u00a0the International Space Station. On January 12th, Kelly posted the following picture, which shows northern Uttar Pradesh on the left, and the Himalayas and Nepal on the right. In December 2014, NASA released a similar picture highlighting … <\/p>\n![\"\"](\"http:\/\/images.spaceref.com\/news\/2014\/india_tmo_2014300.jpg\")
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