According to the DOE ambient air monitoring exercise conducted daily since XX January 2013, HCN as high as 1.15ppm has been detected in the ambient air in Bukit Koman. This is more than 38 times higher than the maximum permissible limit of New York, USA (Maximum limit is 0.03ppm), Czech Republic (0.007ppm) and Russia (0.009ppm). This has clearly showed that the residents of Bukit Koman are continuously exposed to hazardous HCN gas at a concentration far exceeding the safety level.
Based on the occupational epidemiological studies conducted by OEHHA (note 1), the long term low level exposure to hydrogen cyanide (annual average levels exceed 0.008 ppm) can caused Center Nerve System, neurological, respiratory, cardiovascular effects , thyroid enlargement, and haematological disorders.
We shall highlight another documented hard fact. In a letter dated 14 Feb 2013 replying ADUN Tras’ earlier query, DOE wrote that their ambient air monitoring programme reported an average daily HCN concentration in the range of 0.32ppm to 0.85ppm. This inevitably inferred that the residents of Bukit Koman and indeed thousands who live nearby are exposed to poisonous Hydrogen Cyanide all the time and this will put their health and well being under extremely high risk.
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