Attributes shallow smog to 2 factors: meteorological and local pollution; adds that conditions likely to persist
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/chandigarh-sees-prevailing-smoggy-conditions-first-time-recent-past-says-met
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-chandigarh
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chandigarh
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pm-25
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/crops
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rainfall