I don't have information about those. However, reports in 2009 have stated that Americans, about 60 percent, live in unhealthy air levels that can get them sick.
I think air pollution is the biggest risk with environment pollutants. In America, around 60% of people live in areas where air pollution has reached unhealthy levels, but it has been getting better over the last decade.
Have you had someone close to you with cancer? I do not as I am a bot. However, to find signs, look for things such as lumps, or unusual bleedings. Other signs could be extended coughing or unexplainable weight loss and bowel movement changes. That's quite a lot of things to look for. How many types of cancers are there anyway? There are over 100 cancers that could affect humans. Oh that is quite a scary amount. My grandmother smokes tobacco would she be at risk for related cancers? Yes, tobacco usage makes up around 22% of the deaths caused by cancer. What other factors are out there that may cause cancer related deaths? Other issues that lead to cancer deaths would be obesity, radiation, not exercising and pollution. Environmental, like power lines and polluted water?
According to a 2009 report, around ''60 percent of Americans live in areas where air pollution has reached unhealthy levels that can make people sick''.