Chronic Atmospheric Dust Exposure As A Psychosocial Stressor: Neuropsychological and Behavioral Consequences in Arid-Zone Urban Populations of Central Asia
Keywords:
Atmospheric dust, PM2.5, psychological stress, neuroinflammation, HPA axis, anxiety, depression, cognitive impairment, Central Asia, arid zone, neurobiologiaAbstract
Atmospheric dust pollution is a major environmental problem in arid and semi-arid regions of Central Asia, where concentrations of particulate matter (PM2.5 and PM10) frequently exceed the limits recommended by the World Health Organization. Although the respiratory and cardiovascular impacts of dust exposure are well documented, its neuropsychological effects remain insufficiently studied in Uzbekistan.
This study reviews scientific literature published between 2000 and 2025 to examine the neurobiological mechanisms linking chronic dust exposure with psychological stress, anxiety, depression, and cognitive impairment. The findings indicate that long-term exposure to PM2.5 can trigger hypothalamic–pituitary–adrenal (HPA) axis dysregulation, increase inflammatory cytokines (IL-6, TNF-α, CRP), and induce neuroinflammation, which are associated with higher levels of anxiety, depressive symptoms, and reduced cognitive performance. Seasonal analysis also suggests that peak dust storm periods (April–July in southern Uzbekistan) coincide with increased psychological distress.
The study concludes that chronic atmospheric dust exposure represents a significant psychosocial stressor and highlights the need for integrated interventions combining environmental management, phytoremediation buffers, and psychosocial support in arid-zone communities.
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