Summary What is already known about this topic?The rate of secondhand smoke(SHS)exposure among female junior high students in 2013-2014 in China was 69.9%.What is added by this report?The rate of SHS among adolescent ...Summary What is already known about this topic?The rate of secondhand smoke(SHS)exposure among female junior high students in 2013-2014 in China was 69.9%.What is added by this report?The rate of SHS among adolescent girls in 2019 in China was 62.8%,with 60.8%in junior high and 65.3%in senior high school,meanwhile,higher SHS exposure was correlated to higher grade levels,senior high school over junior high school,urban areas,those with more pocket money,those who’ve attempted smoking,exposure to tobacco advertisements,those with parents who smoke,those with close friends who smoke,use of e-cigarettes,and belief that SHS exposure is detrimental to health.What are the implications for public health practice?The rate of SHS exposure among adolescent girls in China still remains extraordinarily high.Targeted public health initiatives to curb SHS exposure among adolescent girls are urgently needed in China.展开更多
Systematic, fixed_point and long observations and sample testing make clear distributions of methane and the homologues in the low_layer air over eastern China and sea areas. Within about 250 km from epicenter of mode...Systematic, fixed_point and long observations and sample testing make clear distributions of methane and the homologues in the low_layer air over eastern China and sea areas. Within about 250 km from epicenter of moderate and strong earthquakes, oil_gas areas have methane concentration anomaly and CO\-2 anomaly in the low_layer atmosphere around the earthquakes, have a temperature increase by 1-6℃ at the occurrence of moderate and strong earthquakes and indicate that concentration anomaly of methane family in the low_layer air can be used as an important index for petroleum geochemical exploration.展开更多
基金Chinese Central Government Key Project of Public Health Program(Z195110010005).
文摘Summary What is already known about this topic?The rate of secondhand smoke(SHS)exposure among female junior high students in 2013-2014 in China was 69.9%.What is added by this report?The rate of SHS among adolescent girls in 2019 in China was 62.8%,with 60.8%in junior high and 65.3%in senior high school,meanwhile,higher SHS exposure was correlated to higher grade levels,senior high school over junior high school,urban areas,those with more pocket money,those who’ve attempted smoking,exposure to tobacco advertisements,those with parents who smoke,those with close friends who smoke,use of e-cigarettes,and belief that SHS exposure is detrimental to health.What are the implications for public health practice?The rate of SHS exposure among adolescent girls in China still remains extraordinarily high.Targeted public health initiatives to curb SHS exposure among adolescent girls are urgently needed in China.
文摘Systematic, fixed_point and long observations and sample testing make clear distributions of methane and the homologues in the low_layer air over eastern China and sea areas. Within about 250 km from epicenter of moderate and strong earthquakes, oil_gas areas have methane concentration anomaly and CO\-2 anomaly in the low_layer atmosphere around the earthquakes, have a temperature increase by 1-6℃ at the occurrence of moderate and strong earthquakes and indicate that concentration anomaly of methane family in the low_layer air can be used as an important index for petroleum geochemical exploration.
