A Critical Review of Heavy Metal Pollution and Its Effects in Bangladesh

Abstract

Abstract:Heavy metal, one of the most hazardous pollutant that can pose serious threat to human and environment. The concentrations of metals are increasing at an alarming rate due to boost of unplanned industrialization and urbanization. Though some metals are playing crucial role as micronutrients but the excessive amount exert negative impact at great extent. The existence of toxic heavy metals in the air, water and sediment can cause severe problems to all organisms because of their long persistence nature and bioaccumulation in the food chain. The present study reviews the various area of Bangladesh to make information on the sources of metal pollution, dissemination of metals in the environment and their possible effects on atmosphere, water, sediment, fishes and vegetables (plants).

Evaluation of Physiochemical Parameters and Some Heavy Metals from Tannery Effluents of Sharada and Challawa Industrial Areas of Kano State, Nigeria

“…Cadmium levels do not also differed significantly in all the sampling sites. Manjushree et al, (2013 Simul-Bhuyan andShafmentaliqul-Islam (2017);Mohammed et al, (2017) obtained similar Cd levels in tannery effluents and treatment efficiency of 33.25%. 0.07mg/L and 0.081mg/L were reported by (Sahuet al, 2007;Amanial, 2015).…”

Identifikasi Pencemaran Logam Berat di Sekitar Pelabuhan Lembar Menggunakan Analisa Parameter Fisika dan Kimia

“…Keberadaan logam berat di dalam air dengan konsentrasi yang melebihi ambang batas yang sudah ditetapkan pemerintah dapat mengakibatkan terjadinya pencemaran dan sangat merugikan masyarakat. Logam berat yang merupakan elemen intrinsik dan alami dapat menjadi racun pada konsentrasi rendah, yang terutama berasal dari pupuk, kotoran hewan, lumpur limbah, bahan kimia pertanian dan irigasi air limbah (Simul Bhuyan, 2017 (Irwan & Afdal, 2016).…”