(1) The impact of air pollution on the human body is, firstly, feeling uncomfortable, then physiologically reversible reactions, and then further acute hazard symptoms.
(1) The effects of air pollution on the human body, first of all feel uncomfortable, then physiologically reversible reaction, and then further acute hazard symptoms.
(1) The impact of air pollution on the human body, first feeling uncomfortable, followed by physiological reversible reaction, and then further on the emergence of acute harmful symptoms.