Ghulam Mustafa Channa et al.trans. 2020. Quantitative Assessment of Some Toxic Elements and Physicochemical Parameters in Wastewater of Dyeing Industry: A Case Study. Pakistan Journal of Analytical & Environmental Chemistry. 21, 1 (Jun. 2020), 132 – 139. DOI:https://doi.org/10.21743/pjaec/2020.06.16.