What ecological problems are there in your city? (town, region, village, street)

My city is heavily populated, which means that we are facing the major ecological problems. First of all, there is an abundance of the polluted air, which causes people from the city to suffer from the inevitable consequences that it may cause on everyone's health. Secondly, as it is common for the big cities, there is a lack of proper recycling methods, especially for plastic, that causes the improper use of the resources. Finally, the water-containing places are being contaminated because of the big factories, which causes the water to become undrinkable.