Primary and secondary wastewater treatment processes are essential for removing pollutants, ensuring environmental stability ...

There are four main types of industry: primary, secondary ... Buriganga River (Bangladesh), which turns black because of the pollutants. This river used to form part of the end of the Ganges.

The traffic police have been stressing that traffic should be allowed during weekends as it’s causing congestion for people ...

The overall research goals are to quantify the emissions of primary pollutants and elucidate the formation mechanisms of secondary pollutants, especially ozone (O 3) and secondary aerosol. Much of ...