There are a lot of things that go into making sure that your home stays safe, but there are also a lot that are just really bad for your health, according to a new study published in the Journal of the American Medical Association.
The findings, based on the analysis of more than 100,000 Americans, show that water and wastewater are among the top sources of environmental contaminants in the U.S. That’s according to the study, which found that water-treatment systems in some cities are much worse than others.
The study also found that in the same year, water systems in the San Diego metropolitan area had about 1.2 times the number of toxic substances as those in other parts of the country.
The researchers, who looked at water treatment systems in Los Angeles, Chicago, Philadelphia and Atlanta, concluded that the “level of toxic contamination at these water treatment facilities is not consistent with any other major U..
They also found “substantial differences” in the quality of water, and noted that there are significant differences between how the water is treated.
The problem isn’t just limited to water.
The authors also looked at waste and pollution in the waste water system, which is what people throw away or put in the sink.
They found that the water system in New York City has about half the number toxic substances of the wastewater system in Atlanta, Philadelphia, Los Angeles and Chicago.
The most toxic substances were the chemicals used to kill bacteria and viruses, the researchers found.
The results are an eye-opening look at the ways that people waste water and trash, according the researchers.
The U.K. is the only major city that does not have an actual waste-water treatment program.
In the U tol, the waste treatment system is not designed to remove contaminants.
The city’s waste water treatment system has more than 2,000 chemicals.
“In some cities, we have more water treatment units than there are homes in the entire country,” said Dr. William M. Bensinger, a toxicologist and lead author of the study.
“There is a need for a much better public health response to this problem.”
Dr. M.V. Patel, a lead author and professor of chemical engineering at the University of Michigan, also said that the U-M researchers were “looking at how much of our waste water gets treated and then ends up in the ground.
We are still not completely sure.”
The study was funded by the U S Environmental Protection Agency and the U .
Department of Agriculture.