My home has been shrouded in toxic and harmful smoke from a nearby rolling mill for a long time. How can I complain?

It is ok to take pictures. You can ask the air inspection department or company to measure it on site. Generally, it will be tested like this after renovation. There are many such companies. With the test report, you have to go to the property or neighborhood Committee. Contact your neighbors and let's go to the environmental quality inspection department to complain.