Assessing Neurobehavioral Alterations Among E-waste Recycling Workers in Hong Kong

Area of Science:

• Environmental Health
• Occupational Health
• Neuroscience

Background:

• Hong Kong's e-waste workers handle increasing volumes of electronic waste containing neurotoxic chemicals.
• Previous research has not evaluated the neurological health status of this specific workforce.
• This study addresses a critical gap in understanding the neurological impact of e-waste handling in Hong Kong.

Purpose of the Study:

• To assess the prevalence of neurobehavioral alterations among Hong Kong e-waste workers.
• To identify specific job roles and work environments associated with higher neurological risk.
• To inform targeted interventions for protecting worker health.

Main Methods:

• Recruited 109 e-waste workers in Hong Kong (June 2021-September 2022).
• Utilized questionnaires (Pittsburgh Sleep Quality Index, Q16/18) for subjective neurobehavioral assessment.
• Employed GENEActiv accelerometers for objective sleep and circadian rhythm analysis.
• Employed logistic regression to analyze associations between occupational factors and neurobehavioral outcomes.

Main Results:

• Dismantlers/repairers and workers in non-government-funded entities showed higher odds of neurotoxic symptoms.
• Workers in self-sustained recycling facilities exhibited disrupted circadian rhythms.
• Highest risk for neurotoxic symptoms was observed in dismantlers/repairers at non-government-funded facilities.

Conclusions:

• E-waste workers, particularly dismantlers/repairers in non-government-funded facilities, face significant neurotoxic risks.
• Findings underscore the urgent need to improve working conditions and safety measures.
• Targeted interventions are crucial for mitigating health risks in high-risk e-waste handling occupations.