Answer :
Final answer:
The AQI value (blank 1) is 201-300, the responsible pollutant (blank 2) is carbon monoxide (co), and this falls under the category (blank 3) 'Very Unhealthy'
Explanation:
The values given in the question represent the 8-hour ozone value, the pm2.5 value, and the co value, which are measures of different pollutants in the air. These values can be used to calculate the Air Quality Index, or AQI, which is an indication of the quality of air. The 8-hour ozone value of 0.078 ppm falls into the 'Moderate' category with an AQI value of approximately 60. The pm2.5 value of 35.9 μg/m3 corresponds to unhealthy air quality with an AQI value of around 101-150. The co value of 8.4 ppm indicates a 'Very Unhealthy' AQI of about 201-300. Hence, blank 1 will have the highest AQI value which is 201-300 from the co pollutant, and so, blank 2 is 'co'. Since an AQI of 201-300 represents unhealthy air for everyone, blank 3 will be 'Very Unhealthy'.
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