The buildings themselves/the facilities themselves can be a source of major problems to the town. Factories usually make use of toxic chemicals, that may harm humans, animals and plants. Such chemicals can be substantial sources of water, soil and air contaminants. More so, when they are not disposed correctly.
And even if they are, there will be always the possibility of accidents, not to mention the use of rivers and streams to discard contaminants by unregulated polluting industry.
That makes the production cheaper but dangerous to the local community that can be intoxicated with those compounds.
Therefore the implementation of a large factory anywhere needs to be discussed along with the whole community. It needs to be carefully planned and every stakeholders need to be heard. Otherwise, lots of people may have their lives affected in a negative way.
For the sake of variety, change “factory” to “plant/building” etc.
Try to use some variety in your vocabulary, factory can be "plant/building" or "people" could be "individuals/inhabitants/citizens..." etc, a Thesaurus dictionary could help you with that, or then you could crawl within the Linguee site for the words (even in Portuguese, with "fábrica" and "pessoas" etc, the search could come up with lots of useful hits.)
I left out the “common in Brazil”, firstly because you were talking in general terms, or should be. Then, because one must stick to the generalizations and then you generalize the fact that the fact is common.
By the way, the New York thing, was just to illustrate, anyway what happens in a city, isn´t necessarily emulated in other place, country, or region.
I left out the pharmaceutical industry part, because you had not mentioned anywhere that the text was about that kind of industry, remember? It was in general, so we can´t put lump togheter this kind of industry pollutants with that of petrochemicals (for the sake of illustration here - but could be many others).
Now I leave the ball to other Forumites. Let´s wait for their thoughts, opinions and improvements.