2009 Southeast Asian haze explained

The 2009 Southeast Asian haze was an episode of large scale air pollution primarily caused by slash and burn practices used to clear land for agricultural purposes in Sumatra, Indonesia. It affected the areas surrounding the Straits of Malacca which besides Indonesia include Malaysia and Singapore.

The haze began in early June 2009 and progressively became worse toward July. With a prevailing dry season caused by El Nino, burning and hence the haze was expected to continue until August or September when the monsoon season arrived.[1]

Malaysia

Air Pollution Index

Daily average API readings in June 2009 https://web.archive.org/web/20090616071719/http://www.doe.gov.my/apims/calender.php
DateGeorge TownKuala LumpurMalacca TownJohor BahruKuantanKuching
1Unavailablealign=center bgcolor=ffff9957align=center bgcolor=ffff9951align=center bgcolor=66ff9941align=center bgcolor=ffff9965align=center bgcolor=66ff9929
2align=center bgcolor=66ff9940align=center bgcolor=ffff9973align=center bgcolor= ffff9952align=center bgcolor=66ff9946align=center bgcolor=66ff9941align=center bgcolor=66ff9939
3align=center bgcolor=66ff9931align=center bgcolor=ffff9973align=center bgcolor= 66ff99 47align=center bgcolor= 66ff99 38align=center bgcolor= 66ff99 43align=center bgcolor= 66ff99 27
4align=center bgcolor=66ff9939align=center bgcolor= 66ff99 46align=center bgcolor= 66ff99 31align=center bgcolor= 66ff99 33align=center bgcolor= 66ff99 44align=center bgcolor= 66ff99 35
5align=center bgcolor=66ff9934align=center bgcolor= 66ff99 44align=center bgcolor= 66ff99 45align=center bgcolor= 66ff99 34align=center bgcolor= 66ff99 41align=center bgcolor= 66ff99 35
6align=center bgcolor=66ff9940align=center bgcolor= 66ff99 40align=center bgcolor= 66ff99 47align=center bgcolor= 66ff99 47align=center bgcolor= 66ff99 43align=center bgcolor= 66ff99 28
7align=center bgcolor= ffff99 58align=center bgcolor= ffff99 76align=center bgcolor= 66ff99 51align=center bgcolor= 66ff99 40align=center bgcolor= 66ff99 39align=center bgcolor= 66ff99 28
8align=center bgcolor= 66ff99 30align=center bgcolor= ffff99 67align=center bgcolor= ffff99 60align=center bgcolor= ffff99 54align=center bgcolor= 66ff99 47align=center bgcolor= 66ff99 36
9align=center bgcolor= 66ff99 28align=center bgcolor= ffff99 98align=center bgcolor= ffff99 56align=center bgcolor= ffff99 56align=center bgcolor= ffff99 52align=center bgcolor= 66ff99 31
10align=center bgcolor= 66ff99 37align=center bgcolor= ffff99 67align=center bgcolor= ffff99 58align=center bgcolor= ffff99 52align=center bgcolor= ffff99 53align=center bgcolor= 66ff99 45
11align=center bgcolor= 66ff99 40align=center bgcolor= ffff99 69align=center bgcolor= ffff99 65align=center bgcolor= 66ff99 45align=center bgcolor= 66ff99 48align=center bgcolor= 66ff99 30
12align=center bgcolor= 66ff99 35align=center bgcolor= ff9966 108align=center bgcolor= ffff99 63align=center bgcolor= ffff99 55align=center bgcolor= 66ff99 41align=center bgcolor= 66ff99 28
13align=center bgcolor= 66ff99 30align=center bgcolor= ffff99 80align=center bgcolor= 66ff99 44align=center bgcolor= 66ff99 41align=center bgcolor= 66ff99 46align=center bgcolor= ffff99 51
14align=center bgcolor= 66ff99 20align=center bgcolor= ffff99 64align=center bgcolor= ffff99 53align=center bgcolor= ffff99 51align=center bgcolor= 66ff99 47align=center bgcolor= 66ff99 31
15align=center bgcolor= 66ff99 20align=center bgcolor= ffff99 56align=center bgcolor= 66ff99 40align=center bgcolor= 66ff99 40align=center bgcolor= 66ff99 38align=center bgcolor= 66ff99 37
16align=center bgcolor= 66ff99 34align=center bgcolor= ffff99 51align=center bgcolor= 66ff99 42align=center bgcolor= 66ff99 48align=center bgcolor= 66ff99 49align=center bgcolor= 66ff99 22
17align=center bgcolor= 66ff99 44align=center bgcolor= ffff99 61align=center bgcolor= ffff99 53align=center bgcolor= 66ff99 42align=center bgcolor= 66ff99 44align=center bgcolor= 66ff99 34
18align=center bgcolor= ffff99 55align=center bgcolor= ffff99 58align=center bgcolor= 66ff99 49align=center bgcolor= 66ff99 36align=center bgcolor= 66ff99 44align=center bgcolor= 66ff99 39
19align=center bgcolor= ffff99 62align=center bgcolor= ffff99 51align=center bgcolor= 66ff99 49align=center bgcolor= ffff99 59align=center bgcolor= 66ff99 42align=center bgcolor= 66ff99 46
20align=center bgcolor= ffff99 68align=center bgcolor= ffff99 61align=center bgcolor= 66ff99 47align=center bgcolor= 66ff99 41align=center bgcolor= 66ff99 42align=center bgcolor= 66ff99 36
  0-50  Good 51-100 Moderate101-200 Unhealthy201-300 Very unhealthy301- Hazardous

See also

Notes and References

  1. News: Indonesia forest fires flare, Malaysia hit by haze . Reuters . 12 June 2009 .

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