Potential health risks due to in-car aerosol exposure across ten global cities

Has Industrial Upgrading Improved Air Pollution?—Evidence from China’s Digital Economy

“…Air pollution exposure is the primary environmental risk factor for human health [3,4]. High concentrations of air pollutants can be harmful to human health, for example, inducing cardiovascular and cerebrovascular diseases [5] and damaging the human respiratory system [5,6]. Studies have shown that the risks to human health have been increasing with the increase in high concentrations of air pollutants, especially in-car PM 2.5 exposure [4,6].…”

“…High concentrations of air pollutants can be harmful to human health, for example, inducing cardiovascular and cerebrovascular diseases [5] and damaging the human respiratory system [5,6]. Studies have shown that the risks to human health have been increasing with the increase in high concentrations of air pollutants, especially in-car PM 2.5 exposure [4,6]. On 22 September 2021, the WHO released the Global Air Quality Guidelines (AQG2021), which have stricter requirements for the concentration of various air pollutants, adjusting the annual average target value of PM 2.5 concentration from 10 µg/m 3 to 5 µg/m 3 and the daily average target value to 15 µg/m 3 , the annual average target value of NO 2 concentration from 40 µg/m 3 to 10 µg/m 3 and the daily average target value to 25 µg/m 3 , and the daily average target value of SO 2 concentration to 40 µg/m 3 .…”

COVID-19, the environment and animal life in Malawi compared to other countries: A brief scooping review for a research agenda in the developing countries

“…While it is known in some parts of Africa, for example Egypt ( Mostafa et al, 2021 ) and South Africa ( Masindi et al, 2021 ), that due to lock-down measures, quality of air improved, except for the recent study which assessed air pollution caused by an increase in numbers of vehicles in global cities including Blantyre ( Kumar and Hama, 2021 ), no study that aimed to assess quality of air in Malawi due to the pandemic was found. Although there have been no studies to assess the impact of COVID -19 on air quality in Malawi; its factual that the pandemic has had an increase on usage of certain medical equipment and resources whose disposal affects quality of the air.…”

Development of urban air environmental control policies and measures

“…air pollution [NO x , particulate matters (PMs), SO 2 , CO 2 and volatile organic compounds (VOC)], urban heat island (UHI) and extreme weather events. [5][6][7] The air environmental problems affect people's living quality and work efficiency and increase health risk, 8,9 particularly during the pandemic of coronavirus disease 2019 (COVID-19). 10 The safe, healthy, low-carbon and energy-saving urban air environment is an important element in promoting the ecological civilization and achieving the carbon peaking and carbon neutrality goal.…”