This study applied a qualitative approach to investigate the underlying influences on consumers’ green food consumption from the intention generation phase to intention execution phase in the perspectives of purchase intention and the intention–behaviour gap (IBG). Additionally, the impact of the “Coronavirus Disease 2019” (COVID-19) pandemic on consumers’ green food purchases was explored. Research data were derived from semi-structured in-depth interviews with 28 consumers and analyzed using grounded theory. The findings identified factors that influenced intentions and the IBG in the process of consumers’ green food purchases. Specifically, these findings reported that health consciousness, perceived attributes, environmental consciousness, social influence, family structure, and enjoyable shopping experiences were identified as major drivers for generating consumers’ green food purchase intentions. High prices of green food, unavailability issues, mistrust issues, and limited knowledge were factors triggering the gap between green food purchase intentions and behaviours. In addition, the results revealed that the COVID-19 crisis increased consumers’ green food purchase intentions, whereas the IBG widens as a result of issues of unavailability, price, and panic. These findings will help stakeholders build future policy and suitable strategies to better promote green food consumption in the Chinese context.

Context Wild fish is a good source of minerals and other high-quality nutrition; however, many wild fish species potentially accumulate hazardous metals, making them a threat to human health. Aims The aim was to study characteristics and the source of metals in wild fish in the South China Sea by using, for the first time, the correlation of trace metals and stable isotopes. Methods Analytical instruments and statistical methods were respectively used to determine elements and the relative correlations. Key results Lead (Pb) and manganese (Mn) tended to accumulate in bluespot mullet and Macao tonguesole. Variation among fish species and spatial differences might be two important factors influencing both the metal concentrations and the selenium (Se):mercury (Hg) molar ratios in biota. Hg, Mn, Pb and tin (Sn) tended to be biomagnified with an increasing trophic level, whereas chromium (Cr) and copper (Cu) showed a trend of biodilution. Conclusions The Se:Hg molar ratios exhibited noticeable species and spatial variation for the wild fish, whereas the main sources of Sn and Pb contamination might be antifouling reagents and surface applications. Implications The speciation of the elements is worth investigating next, so as to obtain valuable insight into the state of the wild environment and the impacts to human wellbeing.

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