Chemical plant planning is unreasonable, too dense, and located in the downwind of the prevailing wind direction, chemical enterprise pollution into the city!

The factory is backward in production technology and lacks effective purification equipment.

The supervision mechanism is not perfect and the management and governance are weak.

The exploitation of Shengli oilfield has a great influence on this, and coal-fired power generation in Shengli Power Plant brings pollution.

There is a lack of discrimination in introducing foreign capital, and a large number of highly polluting industries have been introduced.

With the increase of the number of private cars, automobile exhaust emissions are large.

The understanding of leading cadres and some people is still not in place.