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All Journal Indonesian Journal of Science and Technology Indonesia Chimica Acta
Shamim Al Mamun, Shamim Al
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Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Environmental Science

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Changes of heavy metal concentrations in Shitalakhya river water of Bangladesh with seasons Kabir, Md. Humayun; Islam, Md. Sirajul; Tusher, Tanmoy Roy; Hoq, Md. Enamul; Mamun, Shamim Al
Indonesian Journal of Science and Technology Vol 5, No 3 (2020): IJOST: VOLUME 5, ISSUE 3, 2020
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v5i3.25007

Abstract

Heavy metal concentrations in water and fish of the Shitalakhya river was measured to find out the suitability of its water for drinking and irrigation purposes. The concentrations of Pb, Cu, Cr, Zn, Cd and Hg in water were 0.0065; 0.0240; 0.0069; 0.8170; 0.0044; and 0.0057 mg/L, respectively in pre-monsoon, 0.0029; 0.0151; 0.0019; 0.4270; 0.0015; and 0.0020 mg/L, respectively in monsoon, and 0.0040; 0.0212; 0.0039; 0.6520; 0.0029; and 0.0031 mg/L, respectively in post-monsoon season. The heavy metal concentrations were found higher in pre-monsoon followed by post-monsoon and monsoon. The results also depicted that over the three seasons heavy metal pollution index and heavy metal evaluation index for all metals were lower than the critical pollution index value and low heavy metal contamination, respectively, and the degree of contamination in pre-monsoon season stated medium level pollution, followed by post-monsoon and monsoon season. The concentrations of Pb, Cu, and Cr in fish were found less than the lower detection limit, while the Zn were found 25.42; 18.30; and 29.34 mg/kg during the pre-monsoon, monsoon and post-monsoon, respectively. The study concluded that the Shitalakhya river water was not safe for the aquatic environment, especially for aquatic biota.
Chemical Assessment of Crop Producing Soil: A Study in Tangail Sadar, Bangladesh Muliadi, Muliadi; Afrin, Rezuana; Gazi, Sydur Rahman; Md. Hossain Khan, Abu Abdulla Al-Mamun; Mamun, Shamim Al
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 14, No 1: June 2021
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/ica.v14i1.13654

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Soil is a heterogeneous body and varies in characteristics. Different soils have different requirements for fertilizers, liming, and irrigation and tillage practices depending on the physical and chemical characteristics of soils. The study was conducted to investigate the soil chemical properties of four agricultural areas (Sakrail, Santosh, Porabari and Charabari) of Tangail Sadar, Bangladesh. The values of pH, EC, TOC, total N, K, Ca, Mg and Zn ranged 6.40- 7.85, 0 dsm-1, 0.61- 1.47%, 0.05- 0.131%, 0.11- 0.18 meq/100g, 7.46- 11.26 meq/100g, 2.57- 2.78 meq/100g and 0.78- 1.30 µg/g, respectively. The highest pH level was found in Charabari area indicating almost neutral condition. The highest TOC, total N, Ca and Mg were found in Sakrail area indicating nutrient rich soil in this area. The value of K was highest in Santosh and Charabari areas and Zn level was highest in Santosh area. Significant positive correlations were found between TOC and total N in Santosh area, total N and TOC in Porabari area, Ca and TOC in Charabari area and significant negative correlations were found between Zn and Ca in Porabari area, pH and TOC, pH and Ca and pH and total N in Charabari area. Most of the nutrients were found higher in Santosh and Sakrail areas. So the crop production levels of Porabari and Charabari areas may be hampered due to lack of the essential nutrients.
Co-Authors Afrin, Rezuana Gazi, Sydur Rahman Hoq, Md. Enamul Md. Hossain Khan, Abu Abdulla Al-Mamun Md. Humayun Kabir, Md. Humayun Md. Sirajul Islam, Md. Sirajul Muliadi Tanmoy Roy Tusher, Tanmoy Roy