1. Seasonal variations showed higher AsS-OH content in summer and autumn, with U. lactuca and M. japonica having the highest levels in July 2023 at 1.07 mg/kg and 4.28 mg/kg , respectively; N. munita had the highest content in October 2022 at 5.69 mg/kg. AsS-PO4 content was generally higher in summer and winter, with U. lactuca peaking in February 2023 at 0.29 mg/kg, and M. japonica and N. munita peaking in July 2023 and July 2022 at 0.15 mg/kg and 0.22 mg/kg, respectively. AsS-SO 3 and AsS-SO 4 , though commonly known, are not frequently present in edible macroalgae, but their content in macroalgae is usually very low;Edmondsand Francesconi;AsS-OH and AsS-PO 4 are the most abundant arsenosugars in macroalgae,1981
2. Seaweed consumption in France: Key data for exposure and risk assessment;F Annesophie;Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association,2021