The most common source of air pollution in the United States is the burning of fossil fuels.
But for people who live in areas that don’t get enough sunshine, a different source of pollution can also pose a serious threat.
A recent study published in the journal Environmental Research Letters found that the concentrations of particulate matter from burning fossil fuels in areas with more than 1,000 days of sunshine can reach a level that can be dangerous for human health.
The study found that these pollutants can be measured by pollution monitoring stations, which can be a lifesaver for people living near power plants and power lines.
Researchers at the University of Michigan found that a power plant in Michigan with a diesel generator that uses a coal-fired turbine emits about 7,000 times the amount of pollution that a similar plant with no diesel emits.
The researchers also looked at the level of sulfur dioxide, a greenhouse gas that has been linked to a host of health problems including heart disease, lung cancer, and more.
The amount of sulfur in diesel fuels is often less than the amount in coal, but the researchers found that diesel particulates can be found in some diesel generators.
They found that even with the diesel generators on, the levels of sulfur are still high enough that some of the diesel used in the diesel generator was producing a significant amount of pollutants.
The researchers said that their results showed that it was not just diesel that was contributing to the pollution.
It could be that the diesel that the generators used in their studies were also emitting high levels of pollutants, which in turn could be a source of additional pollution.
“We found that it’s not just that diesel is the most common type of source of particulates,” said lead author and U-M associate professor of environmental science and engineering Michael Fenton, who was a doctoral student at the time.
“But the other types of sources that we looked at — coal-burning, wind farms, and biomass burning — are the sources that contribute the most to the problem.”
Fenton said the findings suggest that the solutions to the emissions of particulating matter from diesel generators need to be based on better technologies and more rigorous testing of diesel generators before they can be added to power grids.
Fenton told the Washington Post that diesel generators have been around for a long time, and they are generally considered the safest source of power for most people in the U.S. and around the world.
But they also pose risks to other human health and the environment.
For example, when the U-Haul trucks carry diesel generators around, they emit sulfur dioxide and nitrogen oxides that can build up in the environment, Fenton said.
The sulfur oxides can be released into the air and cause respiratory problems in people who breathe them in.
Fenton’s research showed that the pollution levels in the areas where he and his colleagues studied were about a third higher than levels found in areas without diesel generators, but still far below the levels seen in the Midwest and elsewhere in the country.
According to Fenton and the authors of the study, it is important to keep diesel generators off of power grids because they are a source that could be harmful to people living in those areas.
The researchers also wrote that they hope to use their findings to improve pollution control for power plants, and to encourage states to consider using carbon capture and storage technology to reduce emissions from diesel engines.