Not much was learned about the way pollution behaved during the trial phase of odd-even in January except that the air quality monitoring plan will have to change.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/quality-not-quantity-be-focus-air-monitoring-time
[2] http://admin.indiaenvironmentportal.org.in/category/author/damini-nath
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/odd-even-numbered-cars
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-pollution-control-committee-dpcc
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards