A5086213082- Pesticide and Herbicide Environmental Studies
- Pesticide Residue Analysis and Safety
- Pharmaceutical and Antibiotic Environmental Impacts
- Toxic Organic Pollutants Impact
- Allelopathy and phytotoxic interactions
- Essential Oils and Antimicrobial Activity
- Antibiotics Pharmacokinetics and Efficacy
- Food Safety and Hygiene
- Environmental Toxicology and Ecotoxicology
- Flowering Plant Growth and Cultivation
- Listeria monocytogenes in Food Safety
- Phytochemistry and Biological Activities
- Analytical chemistry methods development
- Agriculture, Soil, Plant Science
- Phytochemicals and Antioxidant Activities
- Weed Control and Herbicide Applications
- Insect Pest Control Strategies
- Pesticide Exposure and Toxicity
- Tea Polyphenols and Effects
- Nutrition, Health and Food Behavior
- Seed and Plant Biochemistry
- Garlic and Onion Studies
- Effects and risks of endocrine disrupting chemicals
- Soil Carbon and Nitrogen Dynamics
- Food Quality and Safety Studies
Rural Development Administration
2015-2024
National Institute of Agricultural Science and Technology
2017-2022
National Academy of Agricultural Science
2015-2021
Abstract Veterinary antibiotics (VAs) administered to livestock are introduced into the soil through manure and compost. These can run off surface water or leach groundwater during rainfall, causing problems such as antibiotic contamination occurrence of antibiotic-resistant bacteria. In this study, an analytical method for detecting four classes VAs (penicillin, tetracyclines, macrolides, sulfonamides) in river was developed, residual agricultural environment monitored. Soil samples were...
(1) Background: Plants act as the natural sink for a variety of toxins in environment, including veterinary antibiotics (VAs). The objective this study was to evaluate uptake and fate sulfadimethoxine (SDZ), oxytetracycline (OTC), streptomycin (STR) lettuce (Lactuca sativa L.), carrot (Daucus carota), pepper (Capsicum annum) grown VAs amended soil. (2) Methods: 0, 50, 100 mg kg−1 VA laced manure applied sandy clay loam (3) Results: 30-d (lettuce) 60-d (carrot pepper) greenhouse experiment...
BACKGROUND:This study was carried out to investigate pesticide residues from fifty streams in Korea.Water samples were collected at two times.Thee first sampling performed april may, which the season for start of application and second event august september, a period spraying pesticides multiple times. METHODS AND RESULTS:The 136 analyzed by LC-MS/MS GC/ECD.As result, eleven detected sampling.Twenty eight sampling.Seven frequently more than 10 water samples.Ecological risk assessment (ERA)...
Wastewater treatment plants (WWTPs) are considered a sink and source of antibiotic resistance. In this study, we applied both culture-dependent SmartChip-based culture-independent approaches for the investigation antibiotic-resistant bacteria (ARB) resistance genes (ARGs) at Jungnang (JN), located in Han River, Seoul, South Korea, 2 years, i.e., 2017 2018. The JN WWTP reduced diversity abundance ARB ARGs but was not sufficient removing them all. Interestingly, through process WWTP,...
This study provides a review of methods used in the determination organochlorine pesticides (OCPs) ginseng and compares effectiveness three extraction (Quick, Easy, Cheap, Effective, Rugged, Safe (QuEChERS), modified QuEChERS Fast Pesticide Extraction (FaPEx)) analyses 20 OCPs root samples. For each method, sample mass, solvent volume sorbent mass were varied to identify optimum combination effectively isolate analytes interest from complex matrix. Extracts analyzed using gas...
Residual endosulfan in an agricultural environment has been reported, although was listed to persistent organic pollutants and banned. To produce the safe crop from residue risk, plant uptake potential of soil should be studied. In here, potentials various crops were surveyed ranged 0.002-4.460. And bioconcentration factors (BCF) total carrot spinach calculated pot experiment. The BCFs 0.285 0.040-0.047 respectively. Endosulfan sulfate contributed over 42.8% as a major contributor among...
본 연구에서는 들깨 시설재배지 토양 및 작물 중 잔류성유기염소계 농약의 잔류량을 조사하였다. 농약 분석을 위한 추출 정제는 QuEChERS 방법을 다소 개선한 방법으로 수행되었다. 농산물 회수율은 각각 76.3-113.4 79.4-107.3%, 정량한계는 0.03-0.24와 <TEX>$0.33-0.50{\mu}g/kg$</TEX> 수준이었다. 토양에서 dieldirn endosulfan sulfate 2 성분만이 1.6-9.2 <TEX>$22.0-87.8{\mu}g/kg$</TEX> 수준으로 검출되었으나 들깻잎의 모든 시료에서는 검출되지 않았다. 이러한 결과는 토양이 안전성을 위협할 정도로 농약으로 오염되지 않았음을 나타냈다. This study was conducted to investigate residual organochlorine pesticides in green house soil and perilla leaves. Extraction clean-up method...
본 연구에서는 참외, 풋고추 및 상추 시설재배지 토양 작물 중 스톡홀름협약에서 대부분 잔류성유기오염물질(POPs)로 지정된 잔류성유기염소계 농약의 잔류량을 조사하였다. 농약 분석을 위한 추출 정제는 QuEChERS 방법을 다소 개선한 방법으로 수행되었다. 토양, 회수율은 각각 78.2-110.6, 85.2-94.2, 78.3-92.4 73.3-92.6% 이었으며, 토양과 3개 작물에서의 검출한계는 0.01-0.08과 <TEX>$0.11-0.17{\mu}g/kg$</TEX> 수준이었고, 상대표준편차는 작물에서 1.0-4.1, 1.9-3.9, 2.8-4.8 2.5-5.8%로 20% 미만으로 적합한 범위이었다. 토양에서 dieldirn, <TEX>${\beta}-endosulfan$</TEX> endosulfan sulfate 3 성분이 1.4-72.5, 0.1-78.7 <TEX>$0.0-214.1{\mu}g/kg$</TEX> 수준으로 검출되었으나 참외의 모든 시료에서는 검출되지...
Quantitative Determination of Ascaridole, Carvacrol and <italic>p</italic>-Cymene in the Biopesticides Products Derived from <italic>Chenopodium ambrosioides</italic> L. Extracts by Gas Chromatography-Ascaridole,Biopesticide,Carvacrol,<italic>p</italic>-cymene,<italic>Chenopodium
While veterinary antibiotics are used only in a part of the dose administered, rest excreted as urine or feces.Residual enter adjacent agricultural environments by spraying manure-based composts on farmlands and lead to secondary pollution.Therefore, it is necessary develop technique for post management such regulatory levels environments.This study was conducted compare different matrices amount residual tetracyclines sulfonamides, which known be frequently Korea practice risk assessment...
BACKGROUND:This study was conducted to investigate residual organochlorine pesticides (ROCPs) in agricultural soils and crops.Agricultural soil samples crop were collected from 93 cities counties.METHODS AND RESULTS: Extraction clean-up for the quantitative analysis of ROCPs by modified quick, easy, cheap, effective, rugged, safe (QuEChERS) method.Recovery limit detection (LOD) agriculturalsoils crops 76.5-103.0 75.2-93.2%,0.01-0.08 0.10-0.15g/kg, μ respectively.Detected α -endosulfan,...
본 연구에서는 포도 및 복숭아 과수원 토양 과실 중 잔류성유기염소계 농약류의 잔류량을 조사하였다. 농약 분석을 위한 추출 정제는 QuEChERS 방법을 다소 개선한 방법으로 수행되었다. 농산물 회수율은 각각 76.4-101.2 76.4-90.4%, 검출한계는 0.01-0.08와 0.2-0.4 mg/kg 수준이었다. 토양에서 2,4-DDT, 4,4-DDE, 4,4-DDT endosulfan sulfate 4개 성분만이 3.3, 2.3-7.1, 4.5 19.2-73.4 수준으로 검출되었으나 모든 과실시료에서는 검출되지 않았다. 이러한 결과는 토양이 안전성을 위협할 정도로 농약으로 오염되지 않았음을 나타냈다.
BACKGROUND:Residual organochlorine pesticides (OCPs) are designated as persistent organic pollutants (POPs) by Stockholm Convention because they bioaccumulate through the food web, and pose a risk of causing adverse effect to human health environment.Apple pear is economic crop in agriculture, its cultivation area yield has been increased.Therefore, we tried investigate OCPs residue apple orchard soils fruits.METHODS AND RESULTS: Extraction clean-up method were developed using modified...
After application of veterinary antibiotics, they may be partially metabolized before are excreted by feces or urine either as unaltered form metabolites.Residual antibiotics enter the adjacent agricultural environments spraying manurebased compost and liquid fertilizer on farmlands lead to secondary pollution.The objective this study was compare residual concentrations 6 different production stages from livestock manure recycling facilities.The relationship between concentration change...
위생적인 수확후처리를 통하여 안전한 농산물 생산을 유도하기 위하여 영양부추를 대상으로 수확후 처리시설 모델을 개발하였으며 개발된 설치와 위생교육이 미생물 안전에 미치는 효과를 검증하고자 본 연구를 수행하였다. 이를 양주지역 영양부추 생산 농가의 수확 후 환경과 영양부추에서 위생지표세균(일반세균수, 대장균군, E. coli)과 병원성미생물(Escherichia coli O157:H7, Salmonella spp., Staphylococcus aureus, Listeria monocytogenes, Bacillus cereus)을 조사하였다. 그 결과, 빗, 칼, 도마 등 처리시설에서 사용하는 작업도구의 일반세균수 오염수준은 설치농가(A, B)에서 비설치농가(C) 보다 1.44~2.33 log CFU / 100<TEX>$100cm^2$</TEX> 정도 낮았다. 특히 도마의 경우 A농가에서 1.00 100<TEX>$100cm^2$</TEX>이하, B 농가에서 2.23...
As pesticide safety was extended to agricultural environments and Positive List System carried out, Pesticide management in soils has become even more important.To improve needs the degradation technology of residues reduce plant uptake pesticides.In this study, biochars quicklime as methods pesticides (azoxystrboin, procymidone tricyclazole) were used identify reduction effects.The experimental putting quicklimes (0, 0.5, 1.0, 2.0% per 15 cm soil weight) analyzing at 0, 10, 20, 35, 50...
BACKGROUND:Residual organochlorine pesticides (OCPs) are designated as persistent organic pollutants (POPs) by Stockholm Convention because they bioaccumulate through the food web, and pose a risk of causing adverse effect to human health environment.Apple pear is economic crop in agriculture, its cultivation area yield has been increased.Therefore, we tried investigate OCPs residue apple orchard soils fruits.METHODS AND RESULTS: Extraction clean-up method were developed using modified...