Freshwater systems - Pakistan
Samples were collected from multiple locations in Punjab and KPK such as Rawal Lake (Islamabad), Kallar Kahar Lake (Chakwal), Head Rasul barrage (Mandi Bahauddin), Head Marala headwork (Sialkot), Panjnad (Uch Sharif), Warsak Dam (Peshawar), Tarbela Dam (Haripur) and water reservoirs of northern areas.