Objective To understand the characteristics of environmental air pollution in three districts, two counties and one city of Yinchuan in 2020, to evaluate the air quality and the impact of air pollutants on population health, and to provide a theoretical basis for fine management of atmospheric environment in Yinchuan. Methods Based on the air pollution situation in districts and counties of Yinchuan in 2020, the air pollution characteristics were analyzed and summarized using Excel and SPSS 23.0 software. The health risks of SO₂, NO₂, PM₁₀ and PM_2.5 in the air were estimated using the health risk model recommended by the US Environmental Protection Agency. Results The average annual concentrations of PM₁₀ and PM_2.5 (except for Lingwu City) in all counties of Yinchuan in 2020 were higher than the national standard, while the average annual concentrations of SO₂, NO₂, CO and O₃ in all regions were lower than the national secondary standard, indicating that the pollution level was low. Both ambient air quality and atmospheric pollutants (except O₃) showed a ^“V^” emission trend of less in summer and more in winter, while O₃ was the opposite. The average annual concentrations of PM₁₀, PM_2.5, SO₂ and O₃ decreased from north to south, while the concentrations of NO₂ and CO in Xingqing District, Xixia District and Jinfeng District were significantly higher than those in other regions. O₃, NO₂ and particulate matter were the primary atmospheric pollutants in the study area. The health risks of PM₁₀, PM_2.5, SO₂ and O₃ did not exceed the values recommended by the US Environmental Protection Agency. However, these air pollutants posed the greatest health risk to children, while the health risk to the elderly was the least. There were differences in the health risks of these air pollutants between men and women of different ages. Among children and young adults, the health risk for men was higher than that for women. Among adolescent people and the elderly, the health risk of females was obviously higher than that of males. Conclusion The air quality in Yinchuan is good, and the health risk of the population is low.

The widespread application of next generation sequencing (NGS) in clinical settings has enabled testing, diagnosis, treatment and prevention of genetic diseases. However, many issues have arisen in the meanwhile. One of the most pressing issues is the lack of standards for reporting genetic test results across different service providers. The First Forum on Standards and Specifications for Clinical Genetic Testing was held to address the issue in Shenzhen, China, on October 28, 2017. Participants, including geneticists, clinicians, and representatives of genetic testing service providers, discussed problems of clinical genetic testing services across in China and shared opinions on principles, challenges, and standards for reporting clinical genetic test results. Here we summarize expert opinions presented at the seminar and report the consensus, which will serve as a basis for the development of standards and guidelines for reporting of clinical genetic testing results, in order to promote the standardization and regulation of genetic testing services in China.