Dust Storm
Kartavya Desk Staff
Syllabus: Disaster Management
Source: NDTV
Context: A severe dust storm hit Delhi-NCR with wind speeds reaching up to 80 kmph, killing one and injuring three. The IMD issued a red alert, and 15 flights were diverted due to poor visibility and high-speed winds.
Understanding Dust Storms:
• What are Dust Storms? Dust storms are intense winds that lift loose sand and dust from dry surfaces into the atmosphere, reducing visibility and air quality.
• Dust storms are intense winds that lift loose sand and dust from dry surfaces into the atmosphere, reducing visibility and air quality.
• Causes of Dust Storms: Natural Causes: Droughts, arid conditions, low vegetation, and strong pressure gradients. Human-Induced Factors: Overgrazing, deforestation, unsustainable farming, and land degradation.
• Natural Causes: Droughts, arid conditions, low vegetation, and strong pressure gradients.
• Human-Induced Factors: Overgrazing, deforestation, unsustainable farming, and land degradation.
• Regions Impacted in India: Rajasthan, Haryana, Delhi, Gujarat, and parts of Uttar Pradesh frequently experience dust storms during pre-monsoon months.
• Rajasthan, Haryana, Delhi, Gujarat, and parts of Uttar Pradesh frequently experience dust storms during pre-monsoon months.
Consequences of Dust Storms:
• Human Impact: Respiratory illnesses like asthma and bronchitis increase due to PM2.5 and PM10 particles.
• Respiratory illnesses like asthma and bronchitis increase due to PM2.5 and PM10 particles.
E.g. Delhi’s AQI dropped to 164, but exposure risk remained.
• Risk of injuries and fatalities from flying debris, collapsing structures.
E.g. Death of a 67-year-old in Delhi due to wall collapse.
• Governance Impact: Disruption of power supply, damage to infrastructure and public services.
• Disruption of power supply, damage to infrastructure and public services.
E.g. Power outages in North-West Delhi, tree falls blocking roads.
• Air and rail traffic delays affect emergency responses and logistics.
E.g. 15 flights diverted from IGI Airport.
• Animal Impact: Livestock face dust inhalation, eye irritation, and dehydration.
• Livestock face dust inhalation, eye irritation, and dehydration.
E.g. Reported cases of animal distress in storm-prone regions of Rajasthan.
• Migration patterns of birds disrupted due to low visibility and altered air currents.
• Geographic/Environmental Impact: Topsoil erosion reduces land fertility, worsening desertification. Dust storms carry pathogens, impacting water bodies and crops.
• Topsoil erosion reduces land fertility, worsening desertification.
• Dust storms carry pathogens, impacting water bodies and crops.
E.g. UNCCD reports 2000 million tons of dust emitted globally every year.
Measures to Counter Dust Storms:
• Early Warning Systems: IMD alerts, satellite tracking, and AI-based forecasting for real-time action.
• Urban Planning and Infrastructure: Underground cabling, wind-resistant structures, and green belts to block dust movement.
• Natural Resource Management: Reforestation, afforestation, and sustainable soil conservation practices.
• Health Preparedness: Medical advisories, free distribution of masks, and mobile health units in storm-prone areas.
• International Collaboration: Support from UNCCD, WMO, and regional bodies for joint mitigation strategies and policy frameworks.
Conclusion:
Dust storms, intensified by both natural and anthropogenic causes, pose significant threats to human health, infrastructure, and ecosystems. A holistic approach integrating early warnings, sustainable land use, and community resilience is vital for mitigating their impact.
• The process of desertification does not have climate boundaries. Justify with examples. (UPSC-2020)