The city also launched an innovative recycling program
after environmentally concerned citizens blocked
construction of a new garbage incinerator that would
have emitted harmful air pollutants.
這個城市還發起了一個創新的回收計劃，
有關市民的環境封鎖建造一個新的垃圾焚燒爐，將
排放有害空氣污染物。
These efforts paid off.
這些努力得到了回報。
Since 1989, the levels of the seven major air pollutants
in Chattanooga have been lower than those required
by federal standards.
自1989年以來，各級了七種主要空氣污染物
查塔努加一直低於所需由聯邦所訂定的標準。
