It's moving on now and is being diluted by clouds and weather systems. See links below for other imagery. Satellite images show a thick, yellow swirl of dust streaming out across Korea and the Pacific Ocean. The plume that hung over the Colorado area was about four miles thick. Schnell said that events like this do carry urban pollution along with the dust as they move out over the Pacific.
Pollution is a global problem.
Nature has sent us a perfect storm to reinforce the fact that we are all downwind of someone else's pollution. Scientists from NOAA , the National Science Foundation and universities, were already in place conducting an experiment off the coast of Korea and Japan to study the air pollution and it's effect on climate . That study will continue for several more weeks. See NOAA satellite images at the following links.