Fate of pesticides in soil in a coastal lagoon area and associated water quality impacts

2002 ◽  
Vol 45 (9) ◽  
pp. 111-120 ◽  
Author(s):  
A. Tanik ◽  
M. Gurel ◽  
O. Zeren ◽  
I.E. Gonenc ◽  
H. Arslan ◽  
...  
Keyword(s):  
Water Quality ◽  
Coastal Waters ◽  
Water Samples ◽  
Catchment Area ◽  
Water Environment ◽  
Field Surveys ◽  
The Public ◽  
Water Residue ◽  
Very High ◽  
Soil And Water

Pesticides used on agricultural lands are among the significant diffuse sources of pollutants. They are poisons and can be particularly dangerous when misused and/or applied without care. Although certain characteristics of pesticides are well known, their final characteristics after they reach a waterbody are extremely difficult to estimate. Regarding the soil and water environment, it is necessary to conduct both a field study and laboratory analysis. Such a study has been performed in the catchment area of Dalyan Lagoon, Turkey, joining the Mediterranean Sea, that was selected as the pilot region. The input of pesticides, transport in soil and transfer to the water environment together with their probable impacts on water quality are determined by conducting detailed field surveys and water residue analyses. Within the scope of the study, the behavior and fate of pesticides both in soil and water are investigated in detail. Water residue experiments are conducted on four sets of water samples representing the seasons of the year 1999-2000 for the pre-selected 6 pesticides. Two sets of water samples (surface and bottom) are taken from the 16 stations along the lagoon channel and two lakes within the catchment area. The results and findings show the significance of the use of pesticides as they exist in the water environment around and/or slightly above the limits stated in the national current regulations except dichlorvos which presents very high values compared to its tolerance limit. Of particular interest, the results are used to enlighten the farmers and the public and increase awareness of pesticides as contaminants in valuable coastal waters.

scholarly journals Assessment of the effect of solid waste dump site on surrounding soil and river water quality in Teppi town, Southwest Ethiopia

2019 ◽  
Author(s):  
Besufekad Asres Mekonnen ◽  
Alemayehu Haddis ◽  
Wuhib Zeine
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Solid Waste ◽  
River Water ◽  
Water Samples ◽  
Waste Dump ◽  
Dump Site ◽  
Guideline Values ◽  
Leachate Water ◽  
Soil And Water

Abstract Background An increase in the urban population and the rising demand for food and other essentials perpetuate a rise in the amount of waste being generated daily by each household. In low-income countries, this waste is eventually thrown into open dump sites. It can cause severe impacts on human health and the surrounding environment. This study was aimed at assessing the effect of a solid waste dump site of Teppi town on surrounding soil and river water quality. Methods A total of three surface water, one leachate water samples, and four soil samples were collected and were analyzed. Six heavy metals for surface water and leachate samples and four heavy metals for soil samples were measured by flame atomic absorption spectroscopy. Additionally, physical and chemical parameters were analyzed using standard methods. The soil and water data were analyzed statistically using Origin pro version 8.0 computer software packages. Analysis of variance (ANOVA) was used to assess whether the mean values of heavy metals and physicochemical parameters in soil and water samples varied significantly between distances and location from the dump site, possibilities less than 0.05 (p< 0.05) was considered statistically significant. Results pH of soil was slightly basic (pH 8±0.1 up to 8.7±0.21. Similarly, EC was lower in 60 meters (1800±0.5μs/cm) and higher in the other sample sites (3490±0.66-4920±1.04μs/cm). The concentration of heavy metals such as cadmium (0.53±0.01-2.26±0.02 mg/kg), zinc (623.93±0.29-859.41±0.02mg/kg), lead (3.26±0.25-57.560.26mg/kg), and copper (204.06±0.06 337.11±0.01mg/kg) in the sample soils has been found to be higher than Ethiopian EPA and USEPA guideline values. Lead, cadmium, manganese, nickel, copper, and zinc in the leachate water and nickel and manganese in nearby river water, total dissolved solid, BOD5, chemical oxygen demand, and turbidity for both leachate and stream water samples were found to be higher than the Ethiopian EPA and WHO standard guideline values. Conclusions The finding suggested that solid waste open dump site adversely affects soil and water quality in the study area and probable source of human health risks via the food chain. The soil in the area requires Phytoremediation technologies. In addition, sanitary landfill is recommended.

scholarly journals Tobacco and Cannabis Debris Survey Protocol

2022 ◽  
Author(s):  
Laurie C. Van De Werfhorst ◽  
Christopher L. Jerde ◽  
Marc W. Beutel ◽  
Andrew Brooks ◽  
Van Butsic ◽  
...  
Keyword(s):  
Water Quality ◽  
Geographical Location ◽  
The Public ◽  
Product Use ◽  
Cigarette Butts ◽  
Human Use ◽  
Study Sites ◽  
Survey Protocol ◽  
Survey Approach ◽  
Soil And Water

Abstract Tobacco and cannabis product use can result in debris (a.k.a. litter) on the landscape, with implications to soil and water quality and thus potential impacts to ecosystems. More information is needed regarding how much debris exists on the landscape, such that the magnitude of potential associated environment problems can be quantified. Such information can raise awareness in the public about environmental hazards from tobacco and cannabis product use. The goal of this protocol is to quantify, via a timed survey approach, the tobacco and cannabis debris load (i.e. cigarette butts, cannabis or e-cigarette waste) at study sites. Multiple sites in a geographical location may be of interest for comparative analysis, for example sites used regularly by humans (e.g. trails, parking lots, around buildings, garbage cans) versus other sites that are suspected to have low human use. In any case, the same survey data sheet would be used (included with this protocol). Each survey will take 15 minutes per site to conduct. In the process of surveying, debris is collected and retained for later sorting, counting, and photographic documentation. The time to sort and count the collected debris will depend on the quantity and diversity of debris collected.

scholarly journals Effects of Land Cover Changes on Sediment and Nutrient Balance in the Catchment with Cascade-Dammed Waters

2020 ◽  
Vol 12 (20) ◽  
pp. 3414
Author(s):  
Dawid Szatten ◽  
Michał Habel
Keyword(s):  
Water Quality ◽  
Land Cover ◽  
Catchment Area ◽  
Nutrient Balance ◽  
Water Environment ◽  
Hydrological Regime ◽  
Trapping Efficiency ◽  
Land Cover Changes ◽  
Matter Transport

It is commonly believed that changes in the use of the catchment area have a direct impact on the quality of the water environment. Rivers with dams and reservoirs are characterized by a disturbed outflow of sediments and nutrients from the catchment area. The research was based on indicating the variation in time and space of loads of selected parameters of the water quality of the Brda River (Northern Poland) against the land cover changes based on the CORINE Land Cover (CLC) data for the 1990–2018 period. In the lower part of the Brda catchment area, there are three hydropower dams with reservoirs in the form of a cascade, whose work clearly affects the hydrological regime of the river. The analysis of the dependence of the dynamics of water quality changes on the usage of CLC was based on indicators such as sediments (suspended sediment load) and nutrients (total phosphorus load and total nitrogen load). The use of hydrological data on the Brda discharge above and below the reservoirs made it possible to calculate sediment and nutrient trapping efficiency. Linking the CLC data with the indices responsible for the mechanical denudation of the catchment area made it possible to show the strength of changes taking place in the catchment area. The results of the research do not indicate any direct correlation between land cover changes and the dynamics of the denudation process and matter transport in the Brda catchment area. As our research shows, the strong influence on the hydrological regime of the catchment points out the necessity to search for still other research methods supporting the decision-making cycle in the field of water management in the face of climate change.

scholarly journals PENGAMATAN KUALITAS AIR UNTUK MENDUKUNG PERIKANAN DI WADUK CIRATA, JAWA BARAT

2017 ◽  
Vol 14 (2) ◽  
pp. 173 ◽  
Author(s):  
Sri Endah Purnamaningtyas ◽  
Didi Wahju Hendro Tjahjo
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Sea Level ◽  
Water Samples ◽  
Bottom Water ◽  
Water Environment ◽  
Phosphate Concentration ◽  
Dissolved Oxygen Concentration ◽  
Territorial Water

Pengamatan kualitas air di Waduk Cirata (luas: 6.200 ha, rata-rata kedalaman (z):34,9 m, dan ketinggian 225 m dpl) dilakukan mulai bulan Maret sampai dengan Desember 2006. Penelitian ini bertujuan untuk mengetahui kondisi lingkungan perairan Waduk Cirata dalam mendukung kegiatan perikanan. Penelitian dilakukan dengan metode survei dan pengambilan contoh air menggunakan kemmerer bottle sampler” Pengambilan contoh air dilakukan di 6 stasiun pengamatan dengan kedalaman 0,5; 2; 4,5; dan 8 m serta dasar perairan. Dari hasil pengamatan yang di peroleh selama penelitian menunjukkan bahwa kualitas air diWaduk Cirata cukup mendukung untuk kegiatan perikanan tangkap, seperti suhu berkisar antara 27,1 - 31,5°C, pH 6,5 - 8,5, O2 terlarut 0,44 - 4,72 mg per L, CO2 0 - 11,48 mg per L, N-NO2 0 - 0,259 mg per L, N-NO3 0,054 - 9,841 mg per L, NH4 0,0171 - 3,351 mg per L, NH3 0 - 3,17 mg per L, PO4 0,024 - 7,154 mg per L, dan total bahan organik 0 - 27,2 mg per L. Berdasarkan pada hasil dari analisis konsentrasi oksigen terlarut telah mengalami stratifikasi, dan klasifikasi tingkat kesuburan perairan berdasarkan pada konsentrasi fosfat, perairan ini sudah mencapai tingkat eutrofik dan hipereutrofik. Hal tersebut, berarti usaha pengembangan budi daya ikan dalam karamba jaring apung telah melebihi daya dukung perairan dan cenderung telah mencemari perairan. Observation of water quality was done in Cirata Reservoir (area: 6,200 ha, dept mean (z):34.9 m, and altitude 225 m above sea level) from March to December 2006. This research aimed to know the condition of water environment of Cirata Reservoir to support fisheries activities. The research was done using method of survey. Water samples was collected using kemmerer bottle sampler in 6 station sites at a depth of 0.5; 2; 4.5; 8 m and bottom water, respectively. The result indicated that the water quality of Cirata Reservoir was good enough for supporting t fisheries activities, namely water temperature 27.1 - 31.5°C, pH 6.5 to 8.5, DO 0.44- 4.72 mg per L, free CO2 0 - 11.48 mg per L, N-NO2 0 - 0.259 mg per L, N-NO3 0.054 - 9.841 mg per L, NH4: 0.0171 - 3.351 mg per L, NH3 0 - 3.17 mg per L, PO4 0.024 - 7.154 mg per L, organics materials 0 - 27.2 mg per L. Dissolved oxygen concentration stratification was observed, and classification mount fertility of territorial water of its phosphate concentration, this territorial water have reached storey; level of eutrofik and hipereutrofik. The mentioned mean the effort development of fish conducting in net keramba float have exceeded energy support territorial water and tend to have contaminated territorial water.

Assessment of the Effects of Land Use Change in Upper Catchments of Lake Kivu on its Water Quality

2012 ◽  
Vol 535-537 ◽  
pp. 2162-2165
Author(s):  
Jean De Dieu Bazimenyera ◽  
Qiang Fu ◽  
Niragire Théophila
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Land Use Change ◽  
Seasonal Variations ◽  
Water Samples ◽  
Catchment Area ◽  
Major Elements ◽  
Laboratory Analysis ◽  
Lake Kivu ◽  
Effects Of Land Use

This paper analyzed the effects of land use change in the catchment area of Lake Kivu on its water quality. The results of laboratory analysis of water samples from 4 locations testing the concentration of major elements showed that Mn, N, P and K are high during the growing and raining seasons and low during the dry and harvesting seasons. They also indicated that the concentrations of Cr, Al were considerably low in all seasons but vary with the seasons at Nyamasheke and Karongi stations. The variations of other major elements were not depending on the seasonal variations.

scholarly journals Water quality assessment of the Sinos River – RS, Brazil

2015 ◽  
Vol 75 (4 suppl 2) ◽  
pp. 62-67 ◽  
Author(s):  
C. Steffens ◽  
C. R. Klauck ◽  
T. Benvenuti ◽  
L. B. Silva ◽  
M. A. S. Rodrigues
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Water Quality Assessment ◽  
Fecal Coliforms ◽  
Control Group ◽  
The Public ◽  
Social And Economic Development ◽  
Physical And Chemical

Worldwide environmental pollution is increasing at the same rate as social and economic development. This growth, however, is disorganized and leads to increased degradation of water resources. Water, which was once considered inexhaustible, has become the focus of environmental concerns because it is essential for life and for many production processes. This article describes monitoring of the water quality at three points along the Sinos River (RS, Brazil), one in each of the upper, middle and lower stretches. The points were sampled in 2013 and again in 2014. The water samples were analyzed to determine the following physical and chemical parameters plus genotoxicity to fish: metals (Cr, Fe, Al), chemical oxygen demand, biochemical oxygen demand, chlorides, conductivity, total suspended solids, total phosphorous, total and fecal coliforms, pH, dissolved oxygen, turbidity, total Kjeldahl nitrogen nitrate and ammoniacal nitrogen. Genotoxicity was tested by exposing individuals of the species Astyanax jacuhiensis to water samples and then comparing them with a control group exposed to water from the public water supply. The results confirmed the presence of substances with genotoxic potential at the sample points located in the middle and lower stretches of the river. The results for samples from the upper stretch, at P1, did not exhibit differences in relation to the control group. The physical and chemical analyses did not detect reductions in water quality in the lower stretch, as had been expected in view of the large volumes of domestic and industrial effluents discharged into this part of the river.

scholarly journals Characteristics of Hydrochemistry and Stable Isotopes in a Karst Region in Samcheok, Republic of Korea

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 213
Author(s):  
Jiwook Jang ◽  
Jin-Yong Lee ◽  
Heejung Kim
Keyword(s):  
Water Quality ◽  
Stable Isotopes ◽  
Surface Water ◽  
Water Samples ◽  
Major Ions ◽  
Scientific Basis ◽  
Quality Parameters ◽  
Karst Region ◽  
Field Surveys ◽  
High Precipitation

Karst regions cover approximately 10% of the Korean Peninsula and are highly vulnerable to contamination. In this study, five field surveys were conducted between 2017 and 2019 to examine the monthly and seasonal changes in the hydro-environment of a characteristic karst region in Samchoek, South Korea. During the surveys, a total of 24 surface water samples were collected and analyzed for field water quality parameters, major and minor ions, and stable isotopes. The results indicate that the water quality in the study area is significantly affected by precipitation. Overall, the water was classified as a Ca-Mg-HCO3 type, and correlation analysis of the major ions detected in the water samples indicates that the inflow of nitrate to the surface water originated from agricultural activities in the region. Furthermore, variations caused by climate were verified using the relationships between the various ions. In addition, high precipitation rates during the rainy season cause the active exchange of surface material, which was verified using stable isotope outliers. The results provide a scientific basis for studying the connectivity of water systems in complex karst hydrogeological regions and can aid future sustainable management of water resources in these regions.

scholarly journals Kajian Peran Waduk Sebagai Pengendali Kualitas Air Secara Alami

2016 ◽  
Vol 21 (2) ◽  
Author(s):  
Agung B. Supangat ◽  
Paimin Paimin
Keyword(s):  
Water Quality ◽  
Stream Flow ◽  
Catchment Area ◽  
Water Regime ◽  
Water Discharge ◽  
Environment Impact ◽  
Water Quality Control ◽  
Very High ◽  
Observation Results

In Indonesia it was identified that there were much of polluted stream flow which cause improper consumed water. One of the rivers which has low of water qualities is Citarum River, West Java. However, along the Citarum river, there were built three reservoir dams (Saguling, Cirata and Jatiluhur) that can control the condition of river water regime. Research was conducted in Citarum watershed to determine the role of those reservoirs on water quality control. Seven stations along the river were selected as observation posts of water samples. Based on the observation results it was indicated that water pollutants within Citarum river was very high. However, those pollutants could be purified or reduced by those reservoirs, hence water discharge from the reservoirs has better quality. In the future, deposition of those pollutants within the dam may has negative environment impact. Therefore, to sustain that function of the dam, comprehensive efforts on reducing pollutants from the catchment area is urgently required.

scholarly journals Contamination of the soil and water environment by heavy metals in the former mining area of Rudňany (Slovakia)

2014 ◽  
Vol 9 (No. 1) ◽  
pp. 18-24 ◽  
Author(s):  
L. Angelovičová ◽  
D. Fazekašová
Keyword(s):  
Heavy Metals ◽  
Organic Carbon ◽  
Water Samples ◽  
Water Environment ◽  
Mining Area ◽  
Soil Samples ◽  
Soil Reaction ◽  
Limit Values ◽  
The Village ◽  
Soil And Water

Contamination of soil and water environment by heavy metals in a former mining area and their effect on the soil characteristics were determined. Soil samples were collected in the village of Rudňany which is, according to environmental regionalization, classified as an environmentally loaded and unhealthy area. Soil samples were collected in 2011 at eight fields situated at different distance from the pollution source. Total contents of heavy metals (Cu, Pb, Zn, Hg), soil reaction (pH), organic carbon (C<sub>ox</sub>), activity of urease (URE), acid phosphatase (ACP), and alkaline phosphatase (ALP) were determined in soil samples. Water samples were collected in Rudniansky creek, which flows through the village. The contents of heavy metals (Cu, Pb, Zn, Hg) were determined in water samples. High contents of heavy metals in soil and water result from long-term mining and smelting activities predominantly focused on copper and mercury production. Numerous heaps of waste material and tailing ponds are the main pollutant sources representing a great threat to the environment, as these pollutants can accumulate in plants and enter the food chain. Extremely high and above-limit values of copper and mercury were determined in the sampled soils. According to the index of geoaccumulation, copper has been shown as a serious contaminant in some soil sampling fields, which were determined as strongly contaminated. In terms of the geoaccumulation index, all sampling fields were evaluated as very strongly contaminated by mercury. We found significant positive correlation between zinc, lead, and copper contents in soils, which is a likely sign of the same source of pollution. A nonsignificant but positive relationship between soil reaction and heavy metals and a negative correlation between soil pH and organic carbon were observed. A high degree of soil pollution was reflected in soil biological properties. Activity of soil enzymes significantly decreased with increasing heavy metals content in soils. Rudniansky creek was polluted only by copper and mercury. The highest and above-limit values of these metals were determined at the point where the stream leaves the village (in a downstream direction).

scholarly journals Drinking Water Quality from Water Vending Machines in Selected Public Schools in Cebu City, Philippines

2018 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Marchee Tabotabo Picardal ◽  
Emily May Gacusan Rapirap ◽  
Leonora Imperial Micame ◽  
Mary Jane Bacalan Tura ◽  
Ofelia Navarro Barrientos ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Public Schools ◽  
Health Risks ◽  
Water Samples ◽  
School Setting ◽  
Total Coliform ◽  
Physicochemical Analysis ◽  
The Public ◽  
Vending Machines

Drinking water from Water Vending Machines (WVM) may pose health risks to consumers especially to students who are primary end-users in the public school setting. A one-shot survey of WVM water samples from 8 public schools in Cebu City Philippines was analyzed for microbial test and 3 schools were further investigated for physicochemical analysis. Results revealed that 8 water samples registered a total coliform count of 2.6 CFU/mL while specific E.coli testing posted (

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