Spatial Distribution and Source Identification of Water Quality Parameters of an Industrial Seaport Riverbank Area in Bangladesh

Abstract

The Pasur River is a vital reservoir of surface water in the Sundarbon area in Bangladesh. Mongla seaport is located on the bank of this river. Many industries and other commercial sectors situated in this port area are discharging waste into the river without proper treatment. For this reason, geospatial analysis and mapping of water pollutant distribution were performed to assess the physicochemical and toxicological situation in the study area. We used different water quality indices such as Metal Index (MI), Comprehensive Pollution Index (CPI), and Weighted Arithmetic Water Quality Index Method (WQI) to improve the understanding of pollution distribution and processes determining the quality of river water. Multivariate statistical methods were used to evaluate loads and sources of pollutants in the Pasur River system. The results indicate that the sources of contaminants are both geogenic and anthropogenic, including untreated or poorly treated wastewater from industries and urban domestic waste discharge. The concentration range of total suspended solid (TSS), chloride, iron (Fe), and manganese (Mn) were from 363.2 to 1482.7, 108.2 to 708.93, 1.13 to 2.75, and 0.19 to 1.41 mg/L, respectively, significantly exceeding the health-based guideline of WHO and Bangladeshi standards. The high Fe and Mn contents are contributions from geogenic and anthropogenic sources such as industrial waste and construction activities. The average pH value was 8.73, higher than the WHO and Bangladeshi standard limit. WQI (ranging from 391 to 1336), CPI (6.71 to 23.1), and MI (7.23 to 23.3) were very high and greatly exceeded standard limits indicating that the Pasur River water is highly polluted. The results of this study can be used as a first reference work for developing a surface water quality monitoring system and guide decisionmakers for priorities regarding wastewater treatment.

Groundwater Quality of Some Parts of Coastal Bhola District, Bangladesh: Exceptional Evidence

“…A similar finding was reported regarding the DTW of Jashore municipality [34] and the JUST campus [35]. pH values of 7.4-8.8 in lower-depth samples (20-85 m) were also reported for Joypurhat [79] and for the Pasur river in Bangladesh [40]. The DoE and FAO recommended pH values for irrigation water are 6.5-8.5 (Table 2).…”

“…The Mg concentration of the mixed-crop culture was 73.70 mg L −1 (Table 3). Diversified Mg concentrations in water samples are reported in the literature from different parts of Bangladesh [13,40]. The magnesium concentrations of samples collected from the DTW were 151.41 mg L −1 in the Batiaghata upazila, 161.65 mg L −1 in the Dacope upazila, and 186.68 mg L −1 in the Koyra upazila of Khulna district [12,68].…”

“…A high concentration of As was found in the sedimentary aquifer of Bangladesh [85]. A high concentration of elements was found in the pond water of the Jashore Sadar upazila, Bangladesh [40]. All of these dissimilarities are most probably due to the differences in geological positions and the depths and sources of water bodies [20,51].…”

“…Recently, numerous types of research have been performed to verify the water quality in different coastal parts of Bangladesh, e.g., Satkhira [8,24,28], Khulna [29,30], Patuakhali [31], Gopalganj [32,33], Jashore [7,[34][35][36][37][38][39][40], and central south parts of Bangladesh [31,41]. Not only has those, but also the water quality been determined in other parts of The changing climate may have impinged on the cropping pattern of Bangladesh from the primeval period [6].…”

Assessment of Water Quality in Selangor, Malaysia during the Pandemic Movement Control Order

“…This increased the risk of waterborne infections, particularly the growth of Legionella in infrequently used water systems [27]. The majority of water-borne diseases are transmitted by faecal-oral transmission [28], which typically involves consuming or breathing in contaminated food and water as a result of inadequate sewage management and sanitation [29]. According to research on water quality, the main cause of some ailments, including cancer, congenital impairments, skin, lung, brain, kidney, and liver disorders, being several times more common in the study area than elsewhere in the nation is water contamination.…”