11.   The haze was worst on Monday, when it was difficult to see the Santa Catalina Mountains, just north of Tucson, he said.

12.   There was a haze over Maui that day, which Al was blaming on, of all things, another island.

13.   There was haze on the horizon and over the nearby Yarra River, and a brisk business in the sale of hats and caps.

14.   Overhead, a gathering haze was a reminder of the heavy cloud cover that will move in in coming weeks, lending urgency to any planned strike.

15.   Apart from being a health hazard, the haze was an economic bugbear fortourism.

16.   But officials warned wind changes could push the index higher and they expect the haze to be around at least for a few more weeks unless heavy rains fall.

17.   Dr. Ankere Prasaud said the haze could be harmful to humans.

18.   Foreign tourists fear that the choking haze is still affecting air traffic and tourist resorts.

19.   Haze is not healthy and hazy weather will affect the tourism sector.

20.   He added that mutual understanding within Asean was also crucial because the haze was a trans-boundary problem.