空气污染与限行
空气污染与限行
It is shown in the drawing that a young man wearing a mask is staring at the huge characters “ PM2.5” in the polluted sky . In the flourishing and prosperously metropolis with a great many cars , air pollution is extremely serious . And below the portrayal , there is a caption which reads :“air quality”.
Motor vehicle exhaust is the primary cause for the notoriously poor air quality for cities like Beijing , Jakarta and Delhi . Today ,whether in Bangkok , Beijing or Berlin , the roads of the world’s most populous urban areas are flooded with more motor vehicles than at any other time in history . Specifically , there are now more than five million cars in Beijing , with over 1000 new cars being registered every day . Shanghai , Guangzhou and other big cities , all home to over three million automobiles , have also witnessed strong growth in vehicle sales . Due to the poorer quality of air , the rates of asthma other lung-related ailments are considerably higher in large cities than in rural areas . In my view , the restrictions on vehicle driving are not only justified but , indeed , can be extremely beneficial for the densely populated cities in China and elsewhere . To begin with , imposing such measures in major cities can help alleviate air pollution and thus promote a cleaner environment . What is more , improved weather conditions and more blue-sky days can also help boost the locals’ general health as well as psychological well-being .