Abstract
Anthropogenic and industrial activities triggering an alteration on the natural cadmium and nitrogen cycle are deliberated on as one among the most vital environmental concerns. Water quality index (WQI) and skewness, nitrate was 8.37 ± 1.014 in dry season and 3087.87 ± 1.150 for wet season, but cadmium was 0 ± 1.559 in wet season and zero all through the sunny period. Equating results with World Health Organization (WHO) permissible limits, it discovered that nitrate was low throughout both seasons whereas cadmium was 90% above permissible during rainy season, but 100% within limit throughout arid season. The water- physiques in all sites at Ikpoba River in both seasons revealed low disparities (< 20%) with positive linear relationship (R 0.922 ≥ 0.211) for nitrate and (R 0 ≤ 089) for cadmium in dry and wet seasons respectively. What’s more, site 1 in the wet season, and all sites in dry season, exhibited no significant dissimilarities (p >0.05) between them, but others indicated significant dissimilarity (p <0.05) for cadmium and nitrate concentrations. In respect to seasonality, all water-physiques scrutinized revealed significant dissimilarities (p <0.05) for both seasons (nitrate and phosphate) concentration. The cadmium-nitrate ratio was very high particularly in the humid season because of the high input of nitrate. The nutrient contagion index displayed slightly to significantly contagion, whereas the water physiques will pose very high non-carcinogenic health risks and threats to users through the oral pathway.
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