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  _____      ___                _____    __   __  
 /  ___||   / _ \\    ____     |  ___||  \ \\/ // 
| // __    / //\ \\  |    \\   | ||__     \   //  
| \\_\ || |  ___  || | [] ||   | ||__     / . \\  
 \____//  |_||  |_|| |  __//   |_____||  /_//\_\\ 
  `---`   `-`   `-`  |_|`-`    `-----`   `-`  --` 
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Text this: Atmospheric pollutants in Chiang Mai (Thailand) over a five-year period (2005-2009), their possible sources and relation to air mass movement