Table 2.
Average concentrations in µg/m3 and descriptive statistical analyses of ozone and ammonia in air at different city sites in the period 4th April 2005 to 3rd April 2006
| Sampling No. | Time Period | Ozone | Ammonia | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Background Area | Industrial Area | Traffic Area | Commercial Area | Residential Area | Background Area | Industrial Area | Traffic Area | Commercial Area | Residential Area | ||
| 1 | 4/4–18/4 | 22.92 | 9.57 | 7.16 | 10.37 | 13.15 | 5.81 | 2.02 | 10.67 | 11.89 | 5.33 |
| 2 | 18/4–2/5 | 18.10 | 10.15 | 4.67 | 8.04 | 13.57 | 8.83 | 8.32 | 10.22 | 8.94 | 0.73 |
| 3 | 2/5–23/5 | 13.76 | 16.96 | 11.13 | 16.03 | 18.42 | 11.54 | 5.29 | 8.21 | 8.30 | 0.62 |
| 4 | 23/5–30/5 | 14.91 | 9.53 | 7.57 | 8.76 | 10.54 | 1.51 | 38.67 | 43.93 | 41.24 | 53.74 |
| 5 | 30/5–13/6 | 15.52 | 10.38 | 7.28 | 11.81 | 14.96 | 6.10 | 0.74 | 1.80 | 3.02 | 4.01 |
| 6 | 13/6–27/6 | 17.14 | 21.26 | 18.77 | 16.05 | 16.82 | 3.05 | 4.06 | 9.49 | 10.20 | < 1.00 |
| 7 | 27/6–11/7 | 14.66 | 14.29 | 13.47 | 17.61 | 20.71 | 10.26 | 9.68 | 11.84 | 10.38 | 0.99 |
| 8 | 11/7–25/7 | 14.49 | 6.85 | 5.34 | 7.75 | 8.66 | 4.33 | 21.36 | 8.77 | 3.57 | <1.00 |
| 9 | 25/7–8/8 | 16.89 | 9.30 | 6.35 | 9.75 | 12.45 | 18.27 | 1.65 | 7.51 | 14.71 | 10.89 |
| 10 | 8/8–22/8 | 12.86 | 8.71 | 6.04 | 9.08 | 12.72 | 11.02 | 10.47 | 13.98 | 7.87 | 8.18 |
| 11 | 22/8–5/9 | 22.44 | 13.75 | 8.88 | 14.06 | 17.01 | 9.02 | 14.59 | 10.41 | 39.59 | 20.81 |
| 12 | 5/9–19/9 | 13.67 | 7.87 | 5.33 | 8.01 | 9.54 | 50.91 | 24.33 | 25.55 | 15.38 | 13.40 |
| 13 | 19/9–3/10 | 24.01 | 13.20 | 9.24 | 12.93 | 18.15 | 10.58 | 13.32 | 10.30 | 6.68 | 21.25 |
| 14 | 3/10–17/10 | 20.57 | 11.22 | 6.22 | 9.40 | 12.44 | 3.67 | 14.30 | 10.72 | 3.26 | 0.54 |
| 15 | 17/10–31/10 | 23.27 | 11.01 | 6.17 | 11.06 | 13.99 | 7.71 | 11.90 | 12.18 | 9.65 | 0.52 |
| 16 | 31/10–14/11 | 22.80 | 9.67 | 5.29 | 8.88 | 10.40 | 4.83 | 2.04 | 4.83 | 1.32 | 0.50 |
| 17 | 14/11–28/11 | 23.23 | 12.20 | 8.32 | 11.46 | 15.90 | 7.95 | 0.91 | 2.32 | < 1.00 | 10.56 |
| 18 | 28/11–12/12 | 26.46 | 16.97 | 10.38 | 16.69 | 22.06 | 4.41 | 0.69 | 4.18 | 1.31 | 4.01 |
| 19 | 12/12–26/12 | 24.30 | 16.50 | 8.52 | 16.22 | 18.71 | 9.60 | 1.30 | 5.81 | 7.98 | 28.79 |
| 20 | 26/12–9/1 | 20.24 | 16.08 | 6.55 | 15.75 | 15.19 | 13.92 | 2.41 | 20.92 | 13.34 | 1.08 |
| 21 | 9/1–23/1 | 18.23 | 14.49 | 5.89 | 14.21 | 13.70 | 16.48 | 7.84 | 24.90 | 15.69 | 1.30 |
| 22 | 23/1–6/2 | 24.45 | 11.22 | 8.18 | 12.86 | 15.66 | 8.47 | 1.06 | 9.72 | 11.98 | 14.87 |
| 23 | 6/2–20/2 | 23.23 | 12.39 | 8.14 | 13.70 | 16.32 | 3.09 | 1.90 | 6.42 | 27.79 | 33.06 |
| 24 | 20/2–6/3 | 20.57 | 20.48 | 13.79 | 19.68 | 25.06 | 14.25 | 1.11 | 12.22 | 1.11 | 4.91 |
| 25 | 6/3–20/3 | 21.10 | 20.94 | 14.22 | 19.80 | 23.50 | 15.23 | 1.53 | 12.83 | 1.43 | 4.67 |
| 26 | 20/3–3/4 | 23.00 | 21.70 | 15.10 | 20.10 | 24.51 | 14.93 | 1.62 | 9.23 | 0.90 | 5.35 |
| Mean | 17.03 | 11.68 | 8.56 | 11.56 | 14.36 | 10.61 | 7.81 | 11.88 | 10.70 | 9.65 | |
| Median | 15.52 | 10.15 | 7.28 | 10.37 | 13.57 | 8.93 | 3.23 | 10.26 | 8.62 | 4.79 | |
| SD | 4.09 | 4.362 | 3.61 | 3.90 | 4.50 | 4.65 | 6.80 | 5.92 | 8.94 | 6.56 | |
| Minimum | 12.86 | 6.85 | 4.67 | 7.75 | 8.66 | 1.51 | 0.69 | 1.80 | <1.00 | <1.00 | |
| Maximum | 24.01 | 21.26 | 18.77 | 17.61 | 20.71 | 50.91 | 38.67 | 43.93 | 41.24 | 53.74 | |
26 batches, 14 days each, of measurements were done