One way to enforce (执行) them could be through ventilation certificate for buildings, similar to food-hygiene certificate that already exist for restaurants. The bill for all this need not be huge. A recent study found that raising the standard of ventilation in all American ...
There were a total of 255 inspections in 2017, with the majority of ships passing their inspections. Forty-one ships got perfect scores, accounting for about 16 percent of all inspections. The spike in failures, though more elevated than in recent years, still only accounts for 6...