Delhi Closes >1,800 Schools in Response to Dangerous Smog
http://www.nytimes.com/2016/11/05/world/asia/delhi-closes-over-1800-schools-in-response-to-dangerous-smog.html Wow: #airquality equiv. to ~25 cigarettes/day
Interesting commentary in
https://www.thoracic.org/about/newsroom/press-releases/journal/tigheter-air-pollution-standards-may-save-thousands-of-lives-greatly-improve-public-health.php
about reducing urban pollution.
In terms of deaths averted per person, NYC comes across very well vs LA & New Haven (10x better!), viz:
| City | Deaths-Averted | City-Population | Ratio | URL |
| New Haven | 55 | 130660 | 0.0004209 | http://www.healthoftheair.org/city/06401 |
| Phoenix | 598 | 1513000 | 0.0003952 | http://www.healthoftheair.org/city/85003 |
| LA | 1341 | 3884000 | 0.0003453 | http://www.healthoftheair.org/city/90001 |
| NYC | 282 | 8406000 | 0.0000335 | http://www.healthoftheair.org/city/10021 |
However, I probably have the wrong values for the relevant populations (ie should have used metro-area).