Gross Pollutant
Gross Pollutant describes the garbage that is collected in stormwater or drainage systems. It can consist of
- cans
- cigarette butts
- bottles ( glass and plastic)
- plastic bags
- paper
- vegetation fragments ( branches, twigs, grass)
- sediment ( sand, pebbles, rocks)
To prevent these pollutants from entering and blocking the storm water system, they should be intercepted by a gross pollutant trap and removed.