4. identify which of the following cases are in attainment" or "not in attainment" with the epa's standards, explain why. (a) the annual fourth-highest daily maximum for 8-hour concentrations of ozone in denver, colorado was 0.1 ppm, averaged over 2000, 2001 and 2002 years. (b) the 98th percentile of daily concentrations of particulate matter less than 2.5 micron in baltimore city, maryland were 39 ug m averaged over 2015, 2016 and 2017. (c) the annual concentrations of particulate matter less than 2.5 micron in orlando, florida were 12, 13 and 14 ug m'in 2016, 2017 and 2018, respectively. (d) the daily mean concentrations of particulate matter less than 10 micron in daytona beach, florida were 155 ug m and 156 ug m in 2017 and 2018, respectively. (e) the yearly average concentrations of nitrogen dioxide in san diego, california were 50 ppb in 2018.