An academic study has found that traffic pollution can put you through the same level of trauma as going through a divorce.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/traffic-pollution-can-be-bad-your-happiness-divorce
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/international-business-times
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nitrogen-dioxide
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-kingdom-uk
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cars
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lung-disease