Haze forecast for Tuesday: on the high side of good

SINGAPORE - As at 5pm yesterday, the 24-hr PSI stood at 34 to 46 and the 24-hr PM2.5 was 22 to 34µg/m3.

The National Environmental Agency (NEA) said that for the next few days, the low level winds are expected to be southwesterly.

In addtion, thundery showers are expected in the late morning and early afternoon.

Hence, the 24-hr PSI for today is expected to fall within the high end of the Good band (i.e. <50). The 24-hr PM2.5 is expected to be slightly elevated.

Health Advisory (1 Jul 2013, 6:00pm - 2 Jul 2013, 6:00pm)

Based on the 24-hr PSI and 24-hr PM2.5 forecast, the health advisory for this period corresponds to the PSI <100 band in the Ministry of Health (MOH) Health Advisory for the General Public and Workers. This is as follows:

Healthy persons: Normal Activities

Elderly, pregnant women, children: Normal Activities

Persons with chronic medical conditions especially lung or heart disease: Normal Activities

NEA noted that the health impact of haze is dependent on one's health status, the PSI (Pollutant Standards Index) level, and the length and intensity of outdoor activity.

Hence, reducing outdoor activities and physical exertion can help limit the ill effects from haze exposure.

The MOH health advisory for general public and workers provides general advice on the preventive measures that can be taken to reduce the health impact of haze when the air quality is poor.

Those who are not feeling well - especially those with chronic heart or lung conditions - should seek medical attention.

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