Ullah, A.
Hassan, S. S.
Ansari, A. K.
Jalbani, N. B.
Mahar, R. B.
Ahmed, Z.
Brohi, R. Z.
Talpur, M. Y.
Article History
Received: 17 March 2018
Revised: 14 August 2018
Accepted: 29 September 2018
First Online: 9 October 2018
Compliance with ethical standards
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: All authors have declared that there is no conflict of interests. S.S.H., R.B.M., Z.A. are employees of USPCAS-W, MUET, Jamshoro, Sindh, Pakistan. Azizullah is a graduate student of USPCAS-W, MUET. A.K.A is contracted employee of QUEST, Nawabshah, Sindh, Pakistan. N.B.J. is a senior scientific officer in PCSIR laboratory, Karachi, Sindh, Pakistan. R.Z. is laboratory in charge of AAS in Environmental Engineering Department, MUET, Jamshoro, Sindh. M.Y.T. is employee of Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro, Sindh.