Ozone safety

摘要

Innovations are most likely to emerge when people see change as an opportunity rather than a threat.rnNo one likes air pollution, and much has been done recently to combat or at least mitigate air pollution. An expanding trend that has appeared in more than 70 cities and eight countries within the European Union may soon touch down on our shores as well, taking air-pollution-control efforts an interesting step further. Dubbed "low-emission zones" (LEZs) and introduced in Europe in 2007, this innovation is fast becoming common on the continent.