information:highlighting, structural:scholar_edition, quality:corruption, linguistic:voice_change, linguistic:paraphrasing
Pollution

Air quality index is one of the worst in the world. Due to desert terrain, there is plenty of dust throughout the year except for rainy season. Vehicles and industries also contribute to air pollution, greenhouse gas emissions and global warming. There is a lot of noise pollution due to traffic. Land pollution is due to solid trash not disposed to dedicated dumping sites. Trash is seen here and there and sometimes everywhere. Lastly there is water pollution in Lyari and Malir rivers as gutters directly open into these rivers. These rivers than directly go into Arabian sea untreated. So sewerage and industrial wastewater is directly being thrown into Indian Ocean hence polluting it and destroying marine life under the sea. 3 waste water treatment plants exist but are all dysfunctional.