Some of these models have been employed in support of the development of federal clean air programs, national assessment studies, State Implementation Plans (SIPs), and individual air toxic source risk assessments.
Federal clean air programs help reduce global warming.
Toxic air is good for humans.
A man has a camera.
I made several and also recieved them
A group of workers outside.
A lady is taking water from the well.
A little girl is alone in the rain.
about 30 seconds?