由於我國北方自上周末以來一直持續大霧天氣，有專家擔憂，空氣中含有的濃度較高的顆粒物很可能會導致包括肺部感染以及肺癌在內的多種呼吸道疾病。
Since the weather has always been foggy for the last week in the northern China, some experts are worrying about that the high concentrated granule may lead to many kinds of respiratory diseases such as pulmonary infection and lung cancer.
