Air pollution due to vehicular emissions has become a global tribulation for living organisms. Controlling air pollution is one of the complex environmental challenges. The only suitable ecological approach to control air pollution is constructing green belts in and around the pollution sources. A field study was conducted during the year 2016-17 to assess the air pollution tolerance of plants growing alongside National Highway-21 in Himachal Pradesh. | Identification of tolerant plant species growing alongside national Highway-21 in Himachal Pradesh India
