The Yangtze River Basin is an important area for organophosphate esters (OPEs) consumption and emission. Studies proved high OPE detection in Yangtze River water, but there is limited information about the spatiotemporal distribution and transport flux of OPEs in sediment. The present study investigated 16 OPEs in sediment from upstream to mid-downstream of the Yangtze River. The mean concentration of OPEs was 84.30 ng/g, and alkyl-OPEs was the primary component. Great specific surface area and high content of organic carbon significantly increased OPE concentration in Three Gorges Reservoir (TGR) by physical adsorption and chemical bonds (p < 0.05), making TGR the most contaminated area in mainstream. No significant differences in OPE constituents were found in seasonal distribution. Four potential sources of OPEs were identified by principal component analysis and self-organizing maps, and traffic emissions were the dominant source for OPEs. The hazard quotient model results indicated that aryl-OPEs showed moderate risks in the mainstream of Yangtze River, alkyl-OPEs and Cl-OPEs showed low risks. TGR was a significant sink of OPEs in Yangtze River and buried 7.41 tons of OPEs in 2020, a total of 14.87 tons of OPE were transported into the sea by sediment.

Dam construction has far-reaching impacts on pollutant accumulation and the pollutant-induced quality of aquatic environments. Nonetheless, its large-scale effects on pollutant distribution in sediments, which greatly contribute to the environmental impacts of coexisting pollutants, remain poorly understood. We collected sediments from the Yangtze River during the dry and normal seasons (with 'normal' defined in terms of precipitation level), and examined how dam construction alters the spatial trajectories of both inorganic and organic pollutants in the sediments. Sediment composition exhibited linear variation from the upper to the lower reaches, with clay and silt particles dominating the sediment in the Three Gorges Reservoir and sand particles dominating in the middle-lower reaches. Accordingly, upstream of the Three Gorges Dam (TGD), sedimentary carbon, nitrogen, phosphorus, heavy metal, polycyclic aromatic hydrocarbons (PAHs), and oxygenated PAHs (OPAHs) contents increased toward the TGD owing to its regulation of the spatial variation in sediment particle size. The TGD caused upstream sedimentary accumulation of pollutants to be higher nearer to the TGD than in the upper reaches by 17%-129% for carbon, nitrogen, and phosphorus, 7%-51% for heavy metals, 30% for PAHs, and 140% for OPAHs. Pollutant content was sharply lower below the TGD, by 0.58-11.15 times for carbon, nitrogen, and phosphorus, 0.1-2.6 times for heavy metals, 1.7 times for PAHs, and 5.6 times for OPAHs. Upstream of the TGD, levels of NH4+-N, the main form of N in the interstitial water of the Yangtze River, increased lineary toward the TGD, whereas those of NO3--N and NO2--N decreased. Sedimentary organic matter source contributions were consistent along the Yangtze River, being on an average 46% for C3 plants and 28% for soil organic substances, further confirming the dam's regulatory effect on pollutants. These findings provide a foundation for future assessments of the environmental impact of dam-induced river fragmentation and hydrological alterations, and for developing advanced watershed pollutant management strategies.

Although numerous studies have examined the Chinese public’s attitudes towards climate change, few have shed light on how sociopolitical factors related to the policy and the state have shaped such attitudes. This constituted our research goal. Against the background of China’s Dual Carbon Goals, a national survey (n = 1469) was conducted to investigate the relationships between climate attitudes and climate benefit perception, institutional trust, policy familiarity, nationalism, and environmental values. Findings showed that respondents shared a high score of nationalism and a high level of trust in Chinese institutions. Their national benefit perception of climate action, nationalism, and trust in national institutions were strong determinants of their attitudes towards climate change. The findings suggested that for many Chinese, a lower-carbon future will be accompanied by a coming stronger nation, which is a key driver for people to adopt positive attitudes towards addressing climate change. As such, the current study revealed an alternative landscape of the determinants underlying people’s attitudes towards climate change. To our knowledge, this is the first scholarly effort in China to empirically demonstrate the predictive role of nationalistic value in shaping climate attitudes and is one of the earliest efforts in climate communication to test the impact of the policy on such attitudes.

Abstract High climate risk perception drives positive climate attitudes. However, the Chinese public has perceived low climate-related threats but still had high recognition of anthropological climate change and strong support for climate policies. To solve this puzzle, this study extended the theory of multi-level risk perceptions to investigate how personal, societal, and national levels of risk perceptions may have influenced people’s climate attitudes and behavior willingness differently. Based on a national survey, this study found that a strong statism inclination shapes respondents’ climate attitudes and intentions for climate-friendly behaviors, albeit in different ways. The respondents prioritized national interests when thinking of climate change, whereas personal benefits gained importance when respondents considered taking action. This study provides crucial clues to understand better the public mindset about climate change in the world’s biggest emitter besides theoretical implications.

Small-scale water sources serving villages and towns are the main source of drinking water in rural areas. Compared to centralized water sources, rural water sources are less frequently monitored for water quality and have poor post-treatment facilities, making them vulnerable to drinking health risks. To reveal the hydro-chemical characteristics, contaminant sources, and health risks in rural water sources, 189 water samples were collected from lakes and reservoirs, rivers, and groundwater in North and East China for major ions, nutrient salts, microelements, and stable isotope analysis. Statistical analysis and isotopic tracing were performed, as well as human health risk assessment. The exceeding threshold rates for fluoride (F-) and nitrate (NO3-) in surface water were 1.8 % and 9.1 %, respectively. For groundwater, the exceeding threshold rates were 20.9 % for F-, 15.7 % for total iodine (TI), and 4.5 % for NO3-. F- and TI were mainly derived from the leaching of fluoride-and iodine-containing minerals by cationic exchange, and NO3- is mainly derived from nitrogen in the soil (31.7-43.9 %), the use of ammonia fertilizers (24.3-36.1 %), and the discharge of manure and sewage (19.4-31.9 %). Nitrogen in the soil can be an important source of nitrate in the aquatic environment, and soils with higher clay content have a greater retention effect on the migration of nitrogen pollutants from the surface to the ground-water. F- in water sources contributes most to human health risks for drinking, followed by NO3- and TI, and a higher proportion of groundwater (37 %) present health risks for drinking than surface water (14 %) for children. Authorities should give high priority to optimizing the choice of water sources and technology for water treatment, and rational measures should be taken to protect water sources from the threats of anthropogenic pollution.

While ideologies consistently influence public opinions on climate change in Western democracies, whether they affect the Chinese public’s climate attitudes is unknown. By applying a well-established measure of Chinese ideology, this study conducted a nationwide survey (n = 1469) on the relationships between climate attitudes and ideologies, conspiracy beliefs, and science literacy. It is the first study to empirically investigate the impact of ideological tendencies, conspiracy beliefs, and conspiratorial thinking in shaping people’s climate attitudes. Among a series of novel findings, ideology was found to be a crucial factor in Chinese attitudes toward climate change, and economic ideology, in particular, was most strongly related to climate attitude. Moreover, somewhat counterintuitively, we found a positive link between respondents’ conspiratorial thinking and their climate awareness, as well as the failure of the moderation role of science literacy on ideological factors that influence climate attitude. All these findings suggest a mechanism behind the Chinese public’s perception of climate change, primarily working on the individual–state relationship.

Scholars are divided over whether narrative/storytelling occupies a central position in health-related behaviour or in the health-related issues discussed on social media platforms. This study explored Chinese COVID-19 vaccination expressions on Douyin, China's biggest short-video sharing social media platform, and found that narration is still the most important tool employed by Chinese users when talking about COVID-19 vaccinations on Douyin, emphasizing nationalism and widespread optimism. Most of the narratives employed by Chinese users come from a first-person perspective. Nationalism, as manifested in the support expressed for national policies, rather than the external platform characteristics of memetics, makes the Chinese users' expressions about COVID-19 vaccinations similar on Douyin. Douyin seems to have become a 'pilgrimage platform' for the Chinese public to express their patriotic sentiment and their trust in the country and the government.

通过系统分析世界各国气候传播领域近年来的进展,以解释为何公众对气候变化的科学结论缺乏信任这一复杂问题.文中首先概述了各国公众对气候变化的态度以及影响公众态度的社会、政治与经济因素,再分析了各国媒体对气候变化的报道及其媒体效果,并重点探究了社会心理因素如何影响人们对气候变化的认知与态度.此外国际气候传播研究对我国气候传播的发展具有重要启示,我国特定的国情将为国内气候传播研究提供诸多理论发展和实务应用的机会.我国气候传播学者有责任把握我国公众气候态度的多维因素,从而采用针对性传播策略,激励公众自觉参与低碳实践.

理论创新是青年学者肩负的重大历史使命.应该如何理解理论创新?青年传播学者如何实现理论创新?苏州大学传媒学院贾鹤鹏教授认为,理论创新不是一个"神圣"的事情.只要在研究的过程中确实有了新的发现,并且能形成一种新的、有一定普遍意义的解释体系,就可以认为是一种理论创新.而熟悉基本的理论问题和对其方向性变化的把握是实现理论创新的基础;实现理论创新的步骤可以概括为在现象与理论之间的多次"视角转换".

Vaccination against COVID-19 is essential against the pandemic. There are broad discussions on adopting certificates for vaccination and the immunity obtained after infection. Based on a national sample of over 2000 participants administered in April 2021, the current study examines the Chinese public's attitudes to the so-called COVID-19 vaccination passport and factors contributing to their viewpoints. Generally, the Chinese people had favorable opinions on the passport. Among possible contributing factors, income, personal benefit perception, the subjective norm of COVID-19 vaccination, and nationalism were significantly associated with the public's positive attitude. At the same time, general vaccine knowledge and scientific literacy had an inconstant effect. Echoing recent studies, these findings reveal a collectivism-oriented attitude of the Chinese public towards the proposal to certify vaccination publicly. Theoretical and practical implications of the results were discussed.

新冠肺炎疫情早期中国科学家个人化的科普行为值得关注.通过建构基于计划行为理论的概念模型,文章探讨了中国科学家在疫情突发时的应急传播意愿及其影响因素.结果表明:科普态度、主观规范、感知行为控制、道德规范均显著正向影响科学家的科学辟谣行为意愿;基于中国特殊背景提出的变量——感知机构支持能够影响科学家对于科普的态度与感知行为收益,然而感知机构支持与感知行为收益都无法正向影响科学家的科普行为意愿.由结果可知,中国科学家群体在科学传播过程中表现出强组织性特征以及在危机情境之中的高度社会责任感;同时,研究也揭示了"科学传播"向"知识表达"的转变趋势,并阐释了这种转变在未来研究中的独特价值.

A 64 year-old male patient with decompensated cirrhosis of liver after hepatitis B received intravenous injection of ademetionine 1,4-butanedisulfonate injection 1 000 mg and an IV infusion of magnesium isoglycyrrhizinate injection 200 mg once daily.His heart rate, respiration rate and blood pressure were 64 beats /min, 16 times/min and 100/65 mmHg, respectively.Five to six minutes after intravenous injection of ademetionine 1,4-butanedisulfonate for injection on the first day, the patient suddenly developed dyspnea, dysphoria, palpitation, lip cyanosis, wheezing, and moist rales in lungs.It was considered that the adverse reactions was induced by ademetionine 1,4-butanedisulfonate injection.The medication was withdrawn immediately.Bedside ECG monitoring showed that his heart rate, blood pressure and pulse oxygen saturation (SpO2) were 123 beats/min, 224/141 mmHg, and 0.8-0.9, respectively.The patient received mask oxygen inhalation, inhalation of bricalin and budesonide, intravenous injection of dexamethasone sodium phosphate injection 5 mg, an IV infusion of methylprednisolone 40 mg, and doxofylline and glucose for injection 300 mg.About 30 minutes later, the patient′s dyspnea was improved.His heart rate decreased to 76 beats/min, blood pressure declined to 114/62 mmHg, and SpO2 returned to 0.99.The patient was ordered to be kept in bed and received nasal oxygen inhalation.The nasal oxygen was stopped on the third day and intravenous injection of magnesium isoglycyrrhizinate was given.The patient did not develop the symptoms mentioned above.