Press Releases

EPD responses to report on MTR air quality

In response to a Chinese newspaper report today (Friday) that a study commissioned by the Environmental Protection Department had found poor air quality in the MTR stations and train compartments, Dr Alain Lam, Acting Principal Environmental Protection Officer of EPD said the article was misleading and did not reflect the true findings of the study.
Dr Lam said an independent consultant was commissioned by EPD in 1996 to conduct a study for indoor air pollution in offices and public places in Hong Kong.

On air quality in MTR stations, Dr Lam explained, there were different air quality standards for different places and different uses.

"For underground railways, there were air quality guidelines in the USA and the study found that the measured air quality in MTR was in general in compliance," he said.

The overall conclusion of the study with respect to air quality in MTR is as follows:

"The MTRC monitoring results showed acceptable Indoor Air Quality at the concourses and platforms under very crowded conditions.

"Carbon dioxide inside train compartments during peak-hour period was the only indoor air contaminant that exceeded the comfort-based level. However, the levels recorded are comparable with the USA subway guidelines.

"Public's exposure is limited as the maximum travel time on the MTR is only 1-2 hours per day. The crowded situation of MTR during peak hours is likely to persist and it is understood that the MTRC management is working hard in improving the situation, with the priority of dealing with under emergency situations where full load of trains may be trapped for extensive periods."

End/Friday, January 15, 1999

 

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