On September 18, a chemistry PhD published a video regarding the "sulfur-fumigated bamboo shoots" incident in Qingyuan, Guangdong, questioning how illegal vendors obtained regulated sulfur. He pointed out that industrial sulfur may contain impurities such as arsenic, and suggested that regulatory authorities test for arsenic levels in bamboo shoots in addition to sulfur dioxide residues to prevent contamination risks.
Evidence EVIDENCE
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李老师不是你老师
2026-09-20 15:26 · 9月18日，一化学博士针对广东清远“硫磺熏笋”事件发声，质疑工业硫磺管控漏洞，并建议加测竹笋中的砷含量。
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Context CONTEXT
Cause
09.18
·Reported
·Importance III
·Qingyuan
This event
Chemistry PhD Questions Qingyuan Sulfur-Fumigated Bamboo Shoots Incident and Recommends Arsenic Testing
2026.09.20 · Reported
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