Air quality index. Educational scheme with excessive quantities of substances or gases in environment. Vector on isolated white background. EPS 10 premium vector by AlexeyYakovenko

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vector illustration human nature environment air danger respiratory protection medical standard car effect smoke smog icon city toxic clean hygiene unhealthy dirty chemical science Pollution quality warning level gas good metropolis climate index filter warming dust scheme educational emission exhaust diagram harmful carbon monitoring chemicals allergy labeled infographic aqi

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