1.   Officials at the Appalachian Mountain Club, which monitors extremely small particles in New Hampshire, said fine soot and dust pollution is a pervasive problem.

2.   According to the PCD study, the main sources of dust pollution in Bangkok are dust from the road, emission from vehicles and factories.

3.   Bhichit has waged a vigorous campaign against construction companies who failed to cover their work sites with plastic sheets to prevent dust pollution.

4.   Cahill said dust pollution traveling great distances is a problem in many areas.

5.   Residents are normally bothered by the dust pollution from the mining.

6.   The expenditure includes full earthworks so that there would be minimaldisruption and dust pollution faced by residents when work on theremaining upmarket properties begins later.

7.   Workers in these establishments had complained about the dust pollution.