Some traders in Rajshahi allegedly use chemicals or employ kerosene stove method for quick ripening of green bananas, posing threats to public health.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/artificially-ripened-bananas-expose-rajshahi-people-health-hazards
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/new-age-bangladesh
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/banana
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bangladesh