ISLAMABAD  - Environmental pollution has been increased to alarming level in the federal capital, which is also adversely affecting the adjoining areas of the city. During a survey conducted by this news agency citizens highlighted that, cutting off trees, improper garbage disposal, bad sewerage system, constructions of roads are the main factors, causing environmental pollution. Multiple development projects, the widening of roads and construction of underpasses are carried out at the cost of trees that results in the concentration of harmful gases in the air. A Citizen, Hafiz Sibgat told APP that more roads and more driving lanes may help alleviate the traffic problems in the capital city but this also promotes more air pollution problems. Urban plantation and proper system of sewerage, is the need of the hour to check the degradation of environment, he said. He said the concerned authorities should evolve a strategy for the protection of trees, land and water ponds. Therefore, an effective air management plan will also necessitate the introduction of an environment-friendly public transport system to reduce the number of cars on the road, and thus reduce air pollution from direct car emissions and fugitive dust emission from cars travelling on unpaved and paved roads.When contacted CDA spokesman, he said that Civic body is planning and doing serious efforts to eliminate the pollution from the city by making good sewerage system and other necessary things.