Air pollution levels in China's notoriously in Beijing were at dangerous levels Saturday, with cloudy skies blocking out visibility and warnings issued for people to remain indoors.
Local authorities warned that the severe pollution was likely to continue until Tuesday.
The Beijing Municipal Environmental Monitoring Center has reported air-quality indexes between 176 and 442 from its monitors throughout the greater Beijing area since Friday. The index indicates the level of airborne PM 2.5 particulates, which are tiny particular matters considered the most harmful to health.
The air is considered good when the index is at 50 or below, but hazardous with an index between 301 and 500, when people are warned to avoid outdoor physical activities.
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