Here we go again. Tianjin was issued an orange alert for smog on Friday. The most recent bout of heavy pollution is expected to linger over Tianjin from Monday until March 15, Reuters reports.
An orange alert is the second-highest warning in China's four-tier system. Orange alerts are issued when the AQI is expected to exceed 200 for three consecutive days, with one of those days surpassing 300.
Time to bust out those masks.
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