A Nationwide Survey and Risk Assessment of Ethyl Carbamate Exposure Due to Daily Intake of Alcoholic Beverages in the Chinese General Population.

Ethyl carbamate (EC) is carcinogenic, and, in China, oral intake of EC mainly occurs as a result of the consumption of alcoholic beverages. To obtain the latest EC intake and risk analysis results for the general population in China, the China National Center for Food Safety Risk Assessment (CFSA) conducted the sixth total diet study (TDS) as a platform to analyze EC contents and exposure due to the intake of alcoholic beverages. A total of 100 sites in 24 provinces were involved in the collection and preparation of alcohol mixture samples for the sixth TDS.

[Comparative study on the essential composition content of commercial infant formula with the requirements in the new national food safety standard in China from 2017 to 2022].

Objective: In order to understand the distribution of the essential nutrients content in commercial infant formula in China, and to compare its conformity with the new national standard(GB 10765-2021).

Methods: A total of 477 infant fomulas with production data from January 2017 to June 2022 were collected in China. Information in the product labels was recorded and the distribution of nutrient contents was analyzed, compare with the national food safety standard.

Machine-learning prediction of BMI change among doctors and nurses in North China during the COVID-19 pandemic.

Objective: The COVID-19 pandemic has become a major public health concern over the past 3 years, leading to adverse effects on front-line healthcare workers. This study aimed to develop a Body Mass Index (BMI) change prediction model among doctors and nurses in North China during the COVID-19 pandemic, and further identified the predicting effects of lifestyles, sleep quality, work-related conditions, and personality traits on BMI change.

Methods: The present study was a cross-sectional study conducted in North China, during May-August 2022.

Total mercury and methylmercury in Chinese rice and dietary exposure assessment.

Total mercury levels and methylmercury levels were investigated for various grain parts (whole rice, rice husk, brown rice, polished rice, and bran) of 507 rice samples from 15 main rice-producing areas of China. The average total mercury contents in brown rice samples and polished rice samples were 4.2 and 3.

[Comparison and anylisis on national quality control examination results of pesticides residues in food in 2009 and 2011].

Objective: To find out and compare the professionals proficiency of monitoring and inspection agencies on pesticide residue in food, and identify the main factors affecting the quality of result to provide references for improving the quality of the monitoring and inspection results.

Methods: Compare the national quality control examination results of pesticides residues in food of 2009 with 2011.

Results: The submission rates of examination results in 2011 were much higher than in 2009.

[Quality control examination on testing pesticides residues in food for agencies in charge of food safety risk monitoring and inspection].

Objective: To find out the proficiency of professionals in monitoring and inspection agencies on the determination of pesticides residue in food, and to improve the accuracy and comparability of testing results.

Methods: Three sets of quality control samples with the same matrix but different in concentrations of pesticides were prepared; one of blind quality control samples contained chlorpyrifos, methyl parathion, methyl pirimiphos, fenitrothion or triazophos and bifenthrin was dispatched to each inspection agency. Criteria for testing results were evaluated by Z scores: [Z] = < or = 2 for satisfactory; 2 < [Z] < 3 for uncertainty and [Z] > or = 3 for unsatisfactory.