TABLE 2.

Description of sampling sites and parameters affecting sampling environments in wastewater treatment plants visited during winter and summer

Wastewater treatment plant site	Stage(s) of treatment	Temp (°C)	Time of sampling
WWT1	Screening	19/21	9 a.m.–12 p.m.
	Degritting/degreasing	12.5/22	9 a.m.–12 p.m.
	Biofiltration	13/23	9 a.m.–12 p.m.
WWT2	Screening	19/16	9 a.m.–12 p.m.
	Degritting/degreasing	14.5/18	9 a.m.–12 p.m.
	Biofiltration	9.5/19	9 a.m.–12 p.m.
WWT3	Primary screening	24/15.5	9 a.m.–12 p.m.
	Secondary screening	19/18	9 a.m.–12 p.m.
WWT4	Screening	17/19.5	9 a.m.–12 p.m.
	Degritting/degreasing	19.5/19.5	9 a.m.–12 p.m.
	Primary settling	16/18	9 a.m.–12 p.m./12 p.m.–2 p.m.