Abstract：
:The transfer of pesticide residues from herbal teas to their infusion is a subject of particular interest. In this study, a multi-residue analytical method for the determination of pyrethroids (fenpropathrin, beta-cypermethrin, lambda-cyhalothrin, and fenvalerate) in honeysuckle, chrysanthemum, wolfberry, and licorice and their infusion samples was validated. The transfer of pyrethroid residues from tea to infusion was investigated at different water temperatures, tea/water ratios, and infusion intervals/times. The results show that low amounts (0-6.70%) of pyrethroids were transferred under the different tea brewing conditions examined, indicating that the infusion process reduced the pyrethroid content in the extracted liquid by over 90%. Similar results were obtained for the different tea varieties, and pesticides with high water solubility and low octanol-water partition coefficients (log Kow) exhibited high transfer rates. Moreover, the estimated values of the exposure risk to the pyrethroids were in the range of 0.0022-0.33, indicating that the daily intake of the four pyrethroid residues from herbal tea can be regarded as safe. The present results can support the identification of suitable tea brewing conditions for significantly reducing the pesticide residue levels in the infusion.
journal_name
Int J Environ Res Public Healthauthors
Xiao JJ,Li Y,Fang QK,Shi YH,Liao M,Wu XW,Hua RM,Cao HQdoi
10.3390/ijerph14101157subject
Has Abstractpub_date
2017-09-30 00:00:00issue
10eissn
1661-7827issn
1660-4601pii
ijerph14101157journal_volume
14pub_type
杂志文章abstract：:Screen-printed platforms integrated with molecularly imprinted polymers (MIP) were fabricated and characterized as potentiometric sensors for diquat (DQ). The synthesized MIP beads were studied as sensory carriers in plasticized poly(vinyl chloride) membranes. The sensors were constructed by using poly(3,4-ethylenedio...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章
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更新日期：2020-02-11 00:00:00
abstract：:Purpose: To better promote college students' physical activity (PA) and quality of life (QoL), it is imperative to understand this population's PA correlates, such as self-determined motivation and perceived competence. However, few studies existed in this area of inquiry among Chinese college students. Thus, the purp...
journal_title：International journal of environmental research and public health
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更新日期：2019-08-16 00:00:00
abstract：:Most urban areas of the Po basin in the North of Italy are persistently affected by poor air quality and difficulty in disposing of airborne pollutants. In this context, the municipality of Milan started a multi-year progressive policy based on an extended limited traffic zone (Area B). Starting on 25 February 2019, t...
journal_title：International journal of environmental research and public health
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章,随机对照试验
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abstract：:The metallurgical industry is a significant component of the national economy. The main purpose of this study was to establish a composite risk analysis method for fatal accidents in the metallurgical industry. We collected 152 fatal accidents in the Chinese metallurgical industry from 2001 to 2018, including 141 majo...
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pub_type： 杂志文章
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journal_title：International journal of environmental research and public health
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journal_title：International journal of environmental research and public health
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abstract：:Background: We aimed to review published studies to obtain the best estimate of the risk of depression and anxiety among colorectal cancer (CRC) patients. Methods: We searched the PubMed/Medline database, Web of Science, and Google Scholar on the prevalence of depression or anxiety in CRC patients. A review of 15 stud...
journal_title：International journal of environmental research and public health
pub_type： 杂志文章,评审
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更新日期：2019-01-31 00:00:00
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pub_type： 杂志文章
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更新日期：2019-05-30 00:00:00
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更新日期：2019-02-25 00:00:00
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更新日期：2019-05-21 00:00:00
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pub_type： 杂志文章
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更新日期：2019-11-03 00:00:00
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pub_type： 杂志文章
doi：10.3390/ijerph14040409
更新日期：2017-04-12 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph15071465
更新日期：2018-07-11 00:00:00
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journal_title：International journal of environmental research and public health
pub_type： 杂志文章
doi：10.3390/ijerph16173178
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pub_type： 杂志文章,评审
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abstract：:Clayey soil found in coal mines in Appalachian Ohio is often sold to landfills for constructing Recompacted Soil Liners (RSL) in landfills. Since clayey soils possess low hydraulic conductivity, the suitability of mined clay for RSL in Ohio is first assessed by determining its clay content. When soil samples are teste...
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abstract：BACKGROUND:A nationwide study was conducted to explore the short term association between daily individual meteorological parameters and the incidence of acute coronary syndrome (ACS) treated with coronary emergency catheter interventions in the Republic of Slovenia, a south-central European country. METHOD:We linked ...
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pub_type： 杂志文章
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更新日期：2014-11-12 00:00:00
