background air pollution वाक्य

उदाहरण वाक्य

1. The GAW itself was eventually created in 1989 by combining the GO3OS and the Background Air Pollution Monitoring Network.
2. At about this time, the World Meteorological Organization set up another environmental research body, the Background Air Pollution Monitoring Network.
3. In 1985, the Canadian Baseline Program was founded, and on August 29 the following year the Alert Background Air Pollution Monitoring Network ( BAPMoN ) Observatory was officially opened.