Once you purchase the property you own the pollution as well. 

@Sharath Kumar the pop corn ceilings could be a major problem along with any texture on the walls if they are asbestos or lead containing. there is no way to do it your self in Colorado both the removal of asbestos and lead are highly regulated by the Colorado dept of public health's air pollution division, it would be really dangerous to attempt to do this type of friable removal in an apt building because of the shared air systems used in the 1970's you could  contaminate the entire building with asbestos fibers or lead dust.

Less pollution, reduction in traffic, etc.

Those that are affected will not even be able to get back into their apartments for at least another 2 or 3 weeks with the overflow of sewage and raw pollution. 

I wouldn't do any business in there personally. http://www.denverpost.com/2017/02/16/denver-most-polluted-zip-code/

They’re the bane of many Realtor’s existence, because they pollute discussions with clients with worthless data.  

Has anyone had any luck getting the Greater New Haven Water Pollution Control to bill tenants directly instead of landlords?

Environmental:  You may need Pollution coverage depending on the property and what is being done. 5. 

Apparently there was a problem with the septic system on our proposed property polluting his property when the house was occupied (it's been a while).

Those that were experienced booms where, for example, real estate that was worth maybe $100,000, such as a polluted automotive junk yard, went on  sale for over $2 million because it was zoned "Industrial" allowing use of volatile solvents for manufacturing (one type of cannabis distillation).