Southern Taiwan will continue to experience poor air quality as a result of pollutants being carried on a cold air mass from China, the Environmental Protection Administration (EPA) said.

In Kaohsiung and Pingtung, the level of particle pollution — the concentration of harmful fine particulates in the air that are 2.5 microns or less in width — might reach as high as nine on the 10-point index, the EPA said.

Adjoining counties in the south as well as parts of central Taiwan are likely to experience a particle pollution level of up to eight.

The conditions in country’s south and center might prevail until Saturday, the agency said.

Measurements above level seven on the index are deemed severe enough to cause tangible discomfort and health problems.

The EPA said people in the affected areas are advised to wear protective masks covering their noses and mouths when going outdoors during the high-level pollution period.

The agency also suggested that senior citizens and people with heart or respiratory problems should avoid going outside if possible.

High levels of particle pollution are considered harmful because the particles are usually from toxic substances such as heavy metals and can penetrate deep into human lungs.

via EPA warns of high air pollution levels in nation’s south – Taipei Times.