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  Indian J Med Microbiol
 

Figure 2: The fluctuation of sperm progressive motility along with the ambient pollutants. In each panel, the fluctuation of monthly average progressive motility (blue line, matching the left vertical axis of the panel) in the human sperm bank in Beijing from October 2015 to May 2018 was illustrated along with one kind of ambient pollutant (green line, matching the right vertical axis of the panel), with the vertical lines indicating the error bar. The pollutants illustrated in each panel are (a) PM2.5, (b) PM10, (c) SO2, (d) NO2, (e) CO and (f) O3, respectively. PM: particulate matter; PM2.5: PM with diameter <2.5 μm; PM10: PM with diameter <10 μm; SO2: sulfur dioxide; NO2: nitrogen dioxide; CO: carbon monoxide; O3: ozone.

Figure 2: The fluctuation of sperm progressive motility along with the ambient pollutants. In each panel, the fluctuation of monthly average progressive motility (blue line, matching the left vertical axis of the panel) in the human sperm bank in Beijing from October 2015 to May 2018 was illustrated along with one kind of ambient pollutant (green line, matching the right vertical axis of the panel), with the vertical lines indicating the error bar. The pollutants illustrated in each panel are (<b>a</b>) PM<sub>2.5</sub>, (<b>b</b>) PM<sub>10</sub>, (<b>c</b>) SO<sub>2</sub>, (<b>d</b>) NO<sub>2</sub>, (<b>e</b>) CO and (<b>f</b>) O<sub>3</sub>, respectively. PM: particulate matter; PM<sub>2.5</sub>: PM with diameter <2.5 μm; PM<sub>10</sub>: PM with diameter <10 μm; SO<sub>2</sub>: sulfur dioxide; NO<sub>2</sub>: nitrogen dioxide; CO: carbon monoxide; O<sub>3</sub>: ozone.