1. Abdulwahid SJ (2013) Water quality index of delizhiyan springs and shawrawa river within soran district, erbil, kurdistan region of iraq. J Appl Environ Biol Sci 3(1):40–48
2. Adomako D, Nyarko BJB, Dampare SB, Serfor–Armah Y, Osae S, Fi- anko JR, Akaho EHK (2007) Determination of toxic elements in waters and sediments from River Subin in the Ashanti Region of Ghana. Environ Monit Assess 141:165−178
3. Andrade Costa de D, Soares de Azevedo JP, Dos santos MA, Dos Santos FacchettiVinhaes Assumpção R (2020) Water quality assessment based on multivariate statistics and water quality index of a strategic river in the Brazilian Atlantic Forest. Scientific Reports 10: 22038. https://doi.org/10.1038/s41598-020-78563-0
4. APHA (2017) Standard methods for the examination of water and wastewater 23 American public health association american water works association, Water Environment Federation. 9780875532875
5. Azid A, Juahir H, Toriman ME, Endut A, Kamarudin MKA, Rahman MNA, Yunus K (2015) Source apportionment of air pollution: a case study in Malaysia. J Teknolog 72:83–88