severe wildfire, bad air pollution for organism in the world, cause of dust pm2.5, pm10, smoke, smog

air animal atmosphere bad body breath breathe burn carbon cartoon climate construction danger disease dust element environment factory flat forrest gas guard health hot ill illustration lungs man mask monoxide n95 objects organism people physical pm10 pm2 pollution problem protection pulmonary respirator respiratory sickness smog smoke trachea tree vector vehicles weather wildfire