Ban on cars to ease pollution 鈥榥ot feasible鈥
Print Edition
When the air gets really bad, Beijing says it has an emergency plan to yank half the city’s cars off the road. The only problem is: It might be difficult to ever set the plan in motion.
It wasn’t triggered in January, when the city recorded extremely poisonous air pollution. And not this week, when pollution was expected to continue for several days at hazardous levels.
A rare alert issued yesterday was an “orange” one — the second-highest in the four levels of urgency — prompting health advisories, bans on barbecues, fireworks and demolition work, but no order to pull cars from the streets.
“Yesterday, I thought it was bad enough when I went out to eat. But this morning I was hacking,” a Beijing pedestrian who gave her name as Li said yesterday, as a thick haze shrouded the city.
Still, the government did not issue the red alert.
Beijing’s alert system requires a forecast of three days in a row of severe pollution for the highest level. Days of extreme pollution or polluted skies that are expected to clear in less than three days do not trigger the most stringent measures.
A period of pollution in January that saw density readings of PM2.5 particles exceeding 500 micrograms per cubic meter prompted only the mildest, blue-level alert. That density is about 20 times the 25 micrograms considered safe by the World Health Organization.
The measures that went into effect yesterday also ask members of the public to use public transport and to turn off their cars rather than let them run idle, and call for water sprinkling on the street and dust-control measures at building sites.
The most stringent level, red, would order half of Beijing’s 5 million cars off the road.
Ma Jun, of the nongovernmental Institute of Public and Environmental Affairs in Beijing, said accurately forecasting three days of heavy pollution is technically difficult.
But in any case, he said, the government is reluctant to adopt the most disruptive measures, because it would be nearly impossible to notify all drivers of the rules and to adequately boost the capacity of public transport.
“When the alert is low, the measures are not effective, but those for the high-level alert are not feasible,” Ma said.
But he credited the government with being more open about air pollution, saying it issues real-time updates about Beijing’s air quality to people’s cellphones, so they can take protective measures.
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