text:  Due to industrial waste and automobiles , Manila suffers from air pollution , affecting 98 % of the population . <unk> , the air pollution causes more than 4 @,@ 000 deaths . <unk> is Manila 's most air polluted district due to open dump sites and industrial waste . According to a report in 2003 , The <unk> River is one of the most polluted rivers in the world with 150 tons of domestic waste and 75 tons of industrial waste dumped daily . 
  