scholarly journals Comparison of Extraction Methods to Monitor Pesticide Residues in Surface Water

2001 ◽  
Vol 39 (8) ◽  
pp. 325-331 ◽  
Author(s):  
E. Majzik-Solymos ◽  
A. Visi ◽  
G. Karoly ◽  
B. Beke-Berczi ◽  
L. Gyorfi
Keyword(s):  
Surface Water ◽  
Pesticide Residues ◽  
Extraction Methods

Pesticide residues in groundwater and surface water: recent advances in GC-MS-SPME/SPE methods for multiclass analysis

2021 ◽  
pp. 106359
Author(s):  
Jonas da Silva Sousa ◽  
Hélio Oliveira do Nascimento ◽  
Hiago de Oliveira Gomes ◽  
Ronaldo Ferreira do Nascimento
Keyword(s):  
Surface Water ◽  
Pesticide Residues ◽  
Recent Advances

scholarly journals Development of passive sampler POCIS for the analysis of polar pesticides in surface water

2015 ◽  
Vol 18 (2) ◽  
pp. 132-144
Author(s):  
Trang Thi Nhu Tran ◽  
Ty Thi Pham ◽  
Hai Lam Son Truong
Keyword(s):  
Surface Water ◽  
Environmental Factors ◽  
Pesticide Residues ◽  
Passive Sampling ◽  
Sampling Method ◽  
Passive Sampler ◽  
Polar Pesticides ◽  
Sampling Process ◽  
European Standards ◽  
First Time

The first time in Vietnam a passive sampling method has been developed to analyse the polar pesticides in surface water. The initial investigations of POCIS were performed for 7 polar pesticides as simazine,thiodicarb, carbofuran, chlortoluron, atrazine, isoproturon, and diuron. We determined the sampling rates RS for these substances ranged from 0.369 to 0.962 L day- 1. The obtained values of ku and RS showed the important influence of environmental factors such as flow on the ability to integrate polar pesticides in passive sampling process. This method can be applied to determine these 7 polar pesticides in surface water at trace levels according to European standards for pesticide residues in water (< 0.1 μg L-1).

scholarly journals Investigation of pesticide residues in surface water in some areas of agricultural production at Ho Chi Minh city

2013 ◽  
Vol 16 (3) ◽  
pp. 106-119
Author(s):  
Phu Ly Sy Nguyen ◽  
Nguyen Duc Do ◽  
Hien Thi To
Keyword(s):  
Surface Water ◽  
Pesticide Residues ◽  
Agricultural Production ◽  
Chromatographic Method ◽  
Organophosphorus Pesticides ◽  
Ho Chi Minh City ◽  
Growth Stages ◽  
High Concentrations ◽  
Gas Chromatographic Method ◽  
Agricultural Areas

Residual levels of organochlorine and organophosphorus pesticides in surface water in some agricultural areas at Ho Chi Minh City were investigated in 2012. Four organophosphorus pesticides including Malathion, Parathion, Ethion and Trithion and seven organochlorine pesticides including Alpha - HCH, beta-HCH, gammaHCH, aldrin, Heptachlor – epoxide, AlphaEndosulfan and Endosulfan-sulfate were determined in the surface water in four dicstricts : Binh Chanh, Hoc Mon, Cu Chi and Binh Tan using gas chromatographic method with electron capture detector (GCECD). The results showed that residues of pesticide were found with high concentrations in surface water in agricultural areas and pesticide residues changed depending on growth stages of crops. The concentration and distribution of pesticides were different in the water samples at different sites. Residues of pesticides such as Parathion, Ethion and Trithion were detected in surface water although these chemicals had been banned.

Pesticide Residues in Surface Water and Groundwater

Pesticides ◽  
2012 ◽  
pp. 259-298 ◽  
Author(s):  
Tatjana Vasiljević ◽  
Svetlana Grujić ◽  
Marina Radišić ◽  
Nikolina Dujaković ◽  
Mila Laušević
Keyword(s):  
Surface Water ◽  
Pesticide Residues ◽  
Surface Water And Groundwater

scholarly journals Investigation of the occurrence of pesticide residues in rural wells and surface water following application to tobacco

Química Nova ◽  
2007 ◽  
Vol 30 (8) ◽  
pp. 1872-1876 ◽  
Author(s):  
Edson C. Bortoluzzi ◽  
Danilo S. Rheinheimer ◽  
Celso S. Gonçalves ◽  
João B. R. Pellegrini ◽  
Aline M. Maroneze ◽  
...  
Keyword(s):  
Surface Water ◽  
Pesticide Residues

Residual Analysis of Pesticides in Surface Water of Nagpur, India

2019 ◽  
pp. 280-300
Author(s):  
Binota Thokchom ◽  
Neeta Thacker
Keyword(s):  
Surface Water ◽  
Population Density ◽  
Comparative Study ◽  
Pesticide Residues ◽  
Tamil Nadu ◽  
Andhra Pradesh ◽  
High Population Density ◽  
Farming Practices ◽  
Intensive Farming ◽  
Present Study Area

Seventy-five percent of India's economy depends on agriculture with statewide pesticide consumption of 0.5 kg/h. The highest pesticide consuming states are Tamil Nadu and Andhra Pradesh in between 0.8 to 2 kg/ha. Maharashtra is the topmost consumer of pesticides with over 23.5% share. Nagpur city (the present study area) of Maharashtra has high population density with intensive farming practices. Organochlorine and organophorous pesticide residues were measured in surface water collected from major lakes and rivers located in and around this city. A comparative study with previous records has also been discussed. Monitoring experiments conducted during pre-monsoon, monsoon, and post-monsoon seasons allowed the different samples to show their susceptibility for the above-mentioned pesticide residues.

scholarly journals Detecção de Resíduos de Agrotóxicos no Mel de Abelha

2014 ◽  
Vol 2 (2) ◽  
pp. 17
Author(s):  
F. M. Silva ◽  
D. C. Coelho ◽  
A. V. Machado ◽  
R. O. Costa
Keyword(s):  
Gas Chromatography ◽  
Liquid Chromatography ◽  
Pesticide Residues ◽  
High Performance ◽  
Solid Phase ◽  
Foreign Market ◽  
Extraction Methods ◽  
Uv Detector ◽  
Residue Detection ◽  
The Matrix

<p>As abelhas A. melífera são uns dos mais importantes polinizadores de culturas, além disso, elas produzem mel, própolis, geleia real e cera. O mel, principal produto da atividade apícola, utilizado como alimento, adoçante e para fins terapêuticos (apiterapia), tem a imagem de ser natural, saudável e limpo sendo esse um produto muito valorizado no mercado externo por isso, a busca por rigorosos padrões de qualidade se torna necessária para atender a um mercado consumidor cada vez mais exigente. Dessa forma a identificação da origem floral e geográfica, a ocorrência de adulterações e as contaminações, principalmente com antibióticos e agrotóxicos no mel tem se tornado uma rota importante devido os quais podem acarretar problemas de saúde ao consumidor. A dispersão da matriz em fase sólida (MSPD) combinada às técnicas cromatográficas modernas como cromatografia a gás (GC) e cromatografia a líquido (HPLC) é uma alternativa para evitar os diversos inconvenientes encontrados nos métodos clássicos de extração. A proposta desse trabalho foi pesquisar os diferentes tipos de Análises e metodologias de detecção de resíduos de agrotóxicos no mel de abelha Apresentando diferentes metodologias para a execução de estudos para validação de metodologia em métodos analítico, utilizando as técnicas de dispersão da matriz em fase sólida, cromatografia a gás acoplada à espectrometria de massas e cromatografia líquida de alta eficiência com detector espectrofotométrico com arranjo de diodos.</p><p><strong>Pesticide Residues in Honey Pesticide Residues detection in Bee honey</strong></p><pre> </pre><p><strong> </strong>A. mellifera bees are one of the most important pollinators of crops in addition they produce honey, propolis, royal jelly and wax. Honey, the main product of beekeeping, used as food, sweetener and in therapy (apitherapy), has the image of being natural, healthy and clean making a highly valued product in the foreign market so the search for rigorous standards of quality is needed to meet a consumer market increasingly demanding. Thus the identification of floral and geographical origin, the occurrence of tampering and contamination, especially with antibiotics and pesticides in honey has become an important route because which can cause health problems to consumers. The dispersion of the solid phase matrix (PDDM) combined with modern chromatographic techniques as gas chromatography (GC) and liquid chromatography (HPLC) is an alternative to avoid the various drawbacks found in classical extraction methods. The purpose of this study was to investigate the different types of analyzes and pesticide residue detection methodologies in honey Introducing different methodologies for carrying out studies for validation of a method in analytical methods, using the matrix dispersion techniques in solid phase, gas chromatography coupled to mass spectrometry and high-performance liquid chromatography with UV detector with diode array.</p>

Fate of pesticide residues in vegetative filter strips in long-term exposure assessments: VFSMOD development and analysis

2021 ◽  
Author(s):  
Rafael Muñoz-Carpena ◽  
Stefan Reichenberger ◽  
Robin Sur ◽  
Klaus Hammel
Keyword(s):  
Surface Water ◽  
Pesticide Residues ◽  
Mixing Layer ◽  
Storm Events ◽  
Agricultural Field ◽  
Vegetative Filter Strips ◽  
Filter Strips ◽  
Soil Mixing ◽  
Runoff Events

&lt;p&gt;Inclusion of quantitative mitigation of pesticides in regulatory environmental risk assessment (ERA) using common agricultural field conservation practices is a critical need recently identified by experts in North America and EU [1]. Currently, mitigation by vegetative filter strips (VFS) is available by coupling the event-based model VFSMOD in continuous simulations within current long-term higher-tier surface water ERA frameworks (EU FOCUS SWAN, US EPA PWC, PRMA Canada, California CDPR PREM, etc.). In this case, the field management and pesticide-laden surface runoff at the edge of the field is calculated by the model PRZM and VFSMOD routes it from the edge of field through a VFS of desired characteristics to estimate potential load reductions before entering the aquatic environment, simulated by the receiving water body model (FOCUS TOXSWA, EPA VVWM). While under proper settings VFS could effectively reduce pesticide concentrations in surface water below thresholds of concern- what happens to the residues trapped in the VFS? The current ERA VFS framework uses a highly risk-conservative assumption, whereby the pesticide trapped in the VFS undergoes degradation between storm events and the surface residue (soil mixing layer and adsorbed to trapped sediment) is remobilized in full and added to the incoming pesticide load in the next event in the series. While risk conservative, this initial approach is not consistent with the nonuniform pesticide redistribution and extraction with depth used in the model PRZM within current ERA, and it has also been found too conservative for highly sorbed compounds with high specific toxicity like pyrethroids and others. The&amp;#160;objective of this study is to develop a complete VFSMOD component to quantify the fate of VFS pesticide residues between runoff events for use in long-term ERA simulations. This includes realistic assumptions of the fate of the residues, including non-linear pesticide redistribution in the soil, mass balance of the VFS soil mixing layer and sediment trapped, degradation between runoff events, and partial remobilization and carryover of the remaining residue to the next event. Initial sensitivity and limited testing with existing field data are discussed.&lt;/p&gt;

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