High Pollution in Karachi

Karachi is one of the biggest and most populated cities of the Pakistan.
Karachi has a great importance due to many reasons like Gawadar port which is used for import, export.
Karachi also has most productive city. Because vast areas of Karachi are accumulated by industries. Which produce allot of many products which is used inside and send outside the country.
In other word we can say that, it is most polluted city of the Pakisan, because the population in Karachi is greater than other cities, native and migrated peoples are live there for jobs.

Traffic causes noise pollution, and also causes air pollution, which damages the environment.
Housing area is very crowded, and houses are built up without ventilation that also causes suffocation. Noise, and air pollution linked with transportation. Which is the main issue, and waste from factories, like air pollution emitted through the air directly, and water waste is openly moved through channels, which creates a noxious smell, although it is an economically rich city.