According to IQAir, a global air quality technology company, the dust is traveling hundreds of miles. “We are seeing high dust levels in Colorado right now, mostly being blown up from the south ...

Phoenix skies have been hazy this week, filled with unhealthy levels dust from early monsoon winds and smoke from wildfires. But the Valley's air quality problems could get worse as July 4 ...

EPA sets limits on lead-based paint dust levels. ... 10 micrograms per square foot is considered hazardous on floors, and a concentration 10 times that high is considered hazardous on window sills.