Justice Adarsh Kumar Goel, chairman of the National Green Tribunal (NGT), said on Wednesday that India is not taking the issue of air pollution seriously. Addressing an event here in the presence of Gujarat Chief Minister Vijay Rupani on the occasion of World Environment Day, Goel also said that not a single state in the country is complying with garbage disposal norms. “There are sources which are causing pollution. It may be carbon dioxide, carbon monoxide, nitrogen oxide, methane and sulfur oxide. These (gases) are the killers. “Who is creating it? It is created by industrial emissions, burning of crop residue and burning of garbage.