Full Form of OZW

What is OZW?

OZW stands for Ozone Warning, a term used to describe alerts issued when stratospheric ozone levels drop to dangerously low levels, increasing ground-level ultraviolet radiation. In India, these warnings are primarily issued by the Indian Meteorological Department (IMD) and the Central Pollution Control Board (CPCB) during summer months, especially over regions like the Himalayas and the Indo-Gangetic plains where ozone depletion has been observed. The warning system relies on satellite data and ground-based monitoring to measure ozone concentration and UV index. When an OZW is declared, public advisories recommend avoiding direct sunlight between 10 AM and 4 PM, using sunscreen, wearing protective clothing, and staying hydrated. This is particularly important in Indian cities like Delhi, Mumbai, and Chennai where pollution exacerbates UV exposure. Although not as common as air quality alerts, OZWs are critical during events like the annual ozone hole over Antarctica, which can influence tropical regions. For students preparing for competitive exams such as UPSC or State PCS, understanding OZW is relevant under environmental geography and disaster management topics. It highlights the interplay between human activities, climate change, and public health. OZW serves as a preventive measure to reduce skin cancer risks and eye damage among the population.

OZW का फुल फॉर्म

Example

The IMD issued an OZW for Delhi-NCR after satellite data revealed a 15% drop in ozone levels over the region.

OZW — frequently asked questions

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