Which one among the following is not a unit of measurement of surface ozone?निम्नलिखित में से कौन-सी सतही ओज़ोन के मापन की इकाई नहीं है?
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Correct answer: C. Dobson unitडॉब्सन इकाई
Explanation
Surface (ground-level) ozone is measured as a concentration in air — µg/m³, ng/m³ or ppm/ppb. The Dobson unit measures the thickness of the total ozone column in the stratosphere (1 DU = 0.01 mm of pure ozone at STP), not surface concentration.सतही (धरातलीय) ओज़ोन को वायु में सांद्रता के रूप में मापा जाता है — µg/m³, ng/m³ अथवा ppm/ppb। डॉब्सन इकाई समतापमंडल में कुल ओज़ोन स्तंभ की मोटाई मापती है (1 DU = मानक ताप-दाब पर शुद्ध ओज़ोन की 0.01 mm परत), सतही सांद्रता नहीं।More People, Development and Environment questions
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