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Construction of a risk assessment system for chemical residues in agricultural products
Shinai Choi,Jiyeon Hong,Dayeon Lee,Minkyoung Paik 환경독성보건학회 2014 환경독성보건학회지 Vol.29 No.-
Objectives : Continuous monitoring of chemical residues in agricultural and food products has been performed by various government bodies in South Korea. These bodies have made attempts to systematically manage this information by creating a monitoring database system as well as a system based on these data with which to assess the health risk of chemical residues in agricultural products. Methods : Meanwhile, a database system is being constructed consisting of information about monitoring and, following this, a demand for convenience has led to the need for an evaluation tool to be constructed with the data processing system. Results : Also, in order to create a systematic and effective tool for the risk assessment of chemical residues in foods and agricultural products, various evaluation models are being developed, both domestically and abroad. Overseas, systems such as Dietary Exposure Evaluation Model: Food Commodity Intake Database and Cumulative and Aggregate Risk Evaluation System are being used; these use the US Environmental Protection Agency as a focus, while the EU has developed Pesticide Residue Intake Model for assessments of pesticide exposure through food intake. Following this, the National Academy of Agricultural Science (NAAS) created the Agricultural Products Risk Assessment System (APRAS) which supports the use and storage of monitoring information and risk assessments. APRAS efficiently manages the monitoring data produced by NAAS and creates an extraction feature included in the database system. Also, the database system in APRAS consists of a monitoring database system held by the NAAS and food consumption database system. Food consumption data is based on Korea National Health and Nutrition Examination Survey. Conclusions : This system is aimed at exposure and risk assessments for chemical residues in agricultural products with regards to different exposure scenarios.
농업환경 및 농산물의 통합 노출평가 시스템 확립 및 적용
최시내 ( Shinai Choi ),백민경 ( Min-kyoung Paik ),박병준 ( Byung-jun Park ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
위해성평가 업무를 효율적으로 수행하고, 그간 축적된 농업환경 및 농산물중 유해화학물질 모니터 링자료의 보관과 활용을 지원하기 위한 시스템으로 APRAS를 개발하였다. APRAS는 국립농업과학원에 서 보유하고 있는 모니터링 데이터를 기반으로 한 모니터링 데이터베이스 시스템과 국내에서 생산되고 있는 식품소비량자료 중 현재 가장 높은 활용도를 보이고 있는 국민건강영양조사 데이터를 기반으로 한 식품소비량 데이터베이스 시스템으로 이루어져 있다. 본 시스템은 주요 데이터베이스시스템으로부터 노출 및 위해평가시 노출시나리오에 따라 추출가능하도록 하여, 평가목적에 맞는 노출평가와 위해평가가 가능하도록 개발된 시스템이다. 본 시스템은 생산된 잔류모니터링 데이터의 축적과 데이터의 효율적인 연계성을 고려하여 웹기반으로 개발되었고, 위해성평가시스템은 농산물중 잔류화학물 질의 위해성평가를 위한 노출시나리오 구축에 따른 변수 설정과 연계가 이루어지고, 위해도를 예측할 수 있도록 하였다. 또한, 농산물과 관련한 환경매체(토양 및 수질)에서의 잔류량 모니터링 데이터베이스를 포함할 수 있도록 확장시키고, 위해성평가 모듈을 probabilistic approach을 통한 분포추정이 가 능하도록 하였다. APRAS was developed to efficiently carry out risk assessment and support the storage and utilization of the previously accumulated monitoring data of hazardous chemical residues in the agricultural environment and products. APRAS consists of two database systems, the monitoring data in the NAAS and a food consumption database based on the NHNES data. This system is designed to extract data from major database systems relevant to a given exposure scenario so that proper exposure and risk assessment can be performed to achieve evaluation objectives. For the accumulation of the currently available data and efficient data connectivity, the system was developed to be web-based. The risk assessment system sets and associates parameters according to an exposure scenario constructed to evaluate the risk of agricultural chemical residues and predicts corresponding risk. In addition, APRAS was developed to incorporate monitoring databases of the residues and their quantities in the environmental media related to agricultural products, such as soil and water, and the risk assessment module can provide an estimated prediction through a probabilistic approach.
Risk assessment of cyclohexasiloxane D6 in cosmetic products
Ko Yeonju,Lim Donghyeon,Choi Hyunjoon,Choi Seongwon,Choi Shinai,Hong Jiyeon,Yoon Young A.,Chung Hyun,Lim Kyung-Min,Kim Kyu-Bong,Lee Joo Young,Kwack Seung Jun,Bae Ok-Nam 한국독성학회 2024 Toxicological Research Vol.40 No.3
Dodecamethylcyclohexasiloxane (D6) is a siloxane substance mainly used in cosmetics and personal care products. While octamethylcyclotetrasiloxane (D4) and decamethylcyclopentasiloxane (D5) were once commonly used in personal care products, their usage has been restricted due to the classification as persistent, bioaccumulative, and toxic (PBT)/very persistent and very bio-accumulative (vPvB) substances. While D6 has emerged as a substitute for D4 and D5, the risk assessment for D6 remains limited compared to the evaluations for D4 and D5. To address this gap, we conducted a comprehensive risk assessment of D6. In this study, we reviewed the toxicity information on D6 and calculated the exposure level to D6, considering the content of D6 in cosmetic products. No observed adverse effect level (NOAEL) of 1500 mg/kg bw/day was established in a repeated dose toxicity study after oral administration to rats. Negative results were found in tests on the ocular and skin irritation, skin sensitization, and genotoxicity of D6. According to the product content of up to 48% of D6 reported in 2012, the Systemic Exposure Dose (SED) was 5.4E-06 to 7.04 mg/kg bw/day for a 60 kg adult using the exposure factors from Korean cosmetic usage. The Margin of Safety was estimated to be between 35.5 and 4.63E+07, posing a potential health risk of D6 according to the maximum concentration and the product type. Further consideration of the potential of D6 as PBT or vPvB is also required.
강현희,윤충인,Shinai Choi,오금순,김영준 한국식품과학회 2022 Food Science and Biotechnology Vol.31 No.1
Non-nutritive sweeteners (NNS) are food additives that impart a sweet taste to food product with lower calories. Acesulfame potassium, aspartame, sodium saccharin, sucralose, steviol glycosides and enzymatically modified stevia are permitted in Korea. The study established the method of each NNS and applied it to each food items consumed in Korea. For risk assessments, the estimated daily intake (EDI) value for each NNS was calculated. EDI values of NNS were compared directly with each ADI (acceptable daily intake). The total estimated daily intake ranges by age compared with the % ADI were 0.12–0.53, 0.93–1.68, 0.05–0.20, 0.06–0.42 and 0.17–0.98% for acesulfame potassium, sodium saccharin, aspartame, sucralose and sum of stevioside and rebaudioside A, which were based on the overall averages. It can be concluded that the daily dietary intake of each of the five NNS is at a safe level when considered as a proportion of the ADI.