Microplastic pollution (MPs) emerged as a significant environmental concern due to its persistent nature. These MPs particles endure in waters, soils, and even the atmosphere, posing potential threats entire ecosystem. Aquatic organisms are at risk of ingesting MPs, leading accumulation tissues, ultimately affecting food chain. This study aims provide an overview sources distribution, impacts. have been documented various substances such bottled water, salts, seafood, air. However, full...

This study aimed to identify and quantify the total dust exposure underground miners in Mererani, Tanzania, its composition generate evidence for informed decision- policy-making. The Analytical Air Monitoring System (AMS) was used collection, analysis conducted gravimetrically. analysed using Inductively Coupled Plasma Optical Emission Spectroscopy. results showed significant variation levels across different mining zones, with inhaling up 1859 mg of over an 8-hour period drilling zones...

Poor storage conditions, particularly exposure to extreme temperatures, can significantly compromise vaccine efficacy, making them ineffective or harmful. This highlights the urgent need for adequate infrastructure and monitoring systems, especially in remote areas with limited healthcare resources. study evaluates performance of a locally-made solar-powered cooler designed such environments. A digital AKO thermostat was integrated control compressor according specified temperature limits,...

ABSTRACT Groundwater recharge is an important element in ensuring the sustainability of groundwater reservoirs. Unfortunately, its spatial distribution patterns and volume are influenced by climate land use/land cover changes. This article uses WetSpass-M model to assess impacts changes on Kiryandongo area. Long Ashton Research Station Weather Generator-8 (LARS-WG8) was calibrated used downscale future climatic variables from Coupled Model Intercomparison Project Phase-6. The downscaled...

Inadequate knowledge on actual water availability, have raised social-economic conflicts that necessitate proper management. This requires a better understanding of spatial-temporal trends hydro-climatic variables as the main contributor to available for use by sectors economy. The study has analysed trend viz. precipitation, temperature, evapotranspiration and river discharge. One downstream gauge station was used discharge data whereas total 9 daily observed 29 grided satellite stations...

Surface and groundwater from Pangani River Basin (PRB) were sampled in dry wet seasons, analysed for dissolved organic inorganic nutrients (N, P, Si Urea). There was spatial seasonal nutrients' variability, with enrichment of fractions accumulated natural anthropogenic sources. Silicates increased season, whereas nitrate, ammonium, phosphate urea season; except phosphate, other upstream to the river mouth. High rate chemical weathering possibly due tropical climate volcanic rocks has caused...

Abstract Textile industries are among the primary contributors of water pollution. Treatment textile wastewater is very important before discharging it to environment. In present study, laboratory-scale anaerobic batch reactors were used for co-treatment a mixture and domestic at 37 °C. The objective this work was investigate optimum conditions co-digestion wastewater. Domestic as carbon source enhance treatment in color other pollutants removal examined. mixed different proportions make...

Groundwater account for about 60 to 80% of water supply the population Tanzania's semi-arid regions domestic and agriculture uses. Despite importance groundwater resource in areas, limited information exists on recharge amount potential zones Tanzania context climate change which could result unsustainable withdrawals. This study aimed estimate impact identify Lake Manyara catchment using Water Energy Transfer between Soil, Plants Atmosphere under quasi-steady State (WetSpass) model. The...

Abstract The performance of an integrated wastewater treatment system composed a horizontal subsurface flow constructed wetland (HSSFCW), floating (FCW), and anaerobic baffled reactor (ABR) was studied for pollutant removal from seed production wastewater. Cyperus alternifolius (Umbrella Papyrus) plants were used in the HSSFCW, Vetiveria zizanioides (Vetiver grass) FCW. ABR fed with 25 /d its equalization tank. average raw organic loading rate 0.208 kg-COD/d. Grab samples collected twice...

Arsenic (As) in wastewater has negative effects on the environment and human health, hence As containing wastes must be handled properly. Given accessibility of metallic iron, studies investigating into potential application zerovalent iron removal arsenic are promising. In this study, performance sand filter blended with several kinds zero valent (Fe0), such as wool, fillings, nails, were compared. These materials combined a column, efficiency was calculated using concentrations influent...

Small-scale gold mining is linked to significant environmental pollution by potentially toxic elements (PTEs). However, research on the caused such activities remains insufficient especially in developing countries. In present study, a systematic investigation assessed and level of ecological risk PTEs soil stream sediments an active small scale area Isanga, Nzega, Tanzania. Samples amounting 16 20 sediment were gathered from study analyzed for five concentrations (As, Cd, Cr, Hg Pb) using...

Environmental contextUnderstanding the sources of organic carbon and its spatial seasonal variation is essential for implementing measures to control water pollution. There is, however, only limited information about in east African rivers. This study reports distribution dissolved particulate Pangani River Basin, using isotopes trace basin flux Indian Ocean. AbstractThere on rivers, especially from eastern side. Here, we report impacts total suspended matter (TSM), (DOC & POC) Basin...

Lakes are very important for domestic use, commercial purposes, and ecosystem sustenance; nevertheless, studies on how different stressors influence water resources limited, posing challenges in the planning managing of resources. Lake Babati is one lakes East African rift valley as a source fish, drinking water, hippopotamus habitat. The lake level has consistently declined, threatening life organisms depending lake. Nevertheless, no study postulated reasons its decline. Therefore, this...

Abstract The efficacy of vaccine storage is significantly impacted by temperature fluctuations within the cooler, often exacerbated using phase change materials in existing cooler designs for remote areas. These can undergo uneven melting and separation, leading to instability potency loss. In response this challenge, present study introduces a novel design portable, locally‐made solar‐powered optimized longer periods. cooler's performance terms distribution, airflow dynamics, coefficient...

Global croplands, pastures, and human settlements have expanded in recent decades. This is accompanied by large increases energy, water, fertilizer consumption, along with considerable losses of biodiversity. In sub-Saharan Africa, policies are implemented without critical consideration; e.g., agricultural expansions impair ecosystem services. We studied land use/cover the associated rate change for four time epochs, i.e., 1991, 2001, 2011, 2021. employed remote sensing GIS techniques...

Abstract Perceived and real-life water availability have raised social economic conflicts that necessitate proper management. This requires an understanding of spatial-temporal trends hydro-climatic variables as the main contributor to available for use by sectors economy. In this study, we analyzed trend viz. precipitation, temperature, evapotranspiration river discharge. One downstream gauge station was used discharge data whereas a total 9 daily observed 29 grided satellite stations were...

Global croplands, pastures, plantations, and human settlement areas have expanded in recent decades, accompanied by large increases energy, water, fertilizer consumption, along with considerable losses of biodiversity. In sub-Saharan Africa, policies are implemented without critical consideration e.g., agricultural expansions impair ecosystem services the several river basins. The current study has studied landuse/cover associated rate change for four-time epochs i.e., 1991, 2001, 2011 2021....

Earth and Space Science Open Archive This preprint has been submitted to is under consideration at Water Resources Research. ESSOAr a venue for early communication or feedback before peer review. Data may be preliminary.Learn more about preprints preprintOpen AccessYou are viewing the latest version by default [v1]Distribution yield of trace metals from foot Mount Kilimanjaro coastal Indian Ocean: impacts natural anthropogenic factorsAuthorsJuma...

Global projections show that increases in agriculture water productivity (AWP) by 30 and 60% rain-fed irrigated agriculture, respectively, are required to ensure food security the period 2000–2025. In sub-Saharan Africa, attempts understand AWP has seen a lamping of input values which paints an unrealistic picture AWP. We employed residual imputation method isolate marginal value six paddy farming systems viz. conventional transplant flooding system (CTFS), rice intensification (SRI),...