Table 4 Magnitude (slope) and direction (−/+) of trends for the hazard quotient (HQ) associated with nitrate measured in each studied well located in the Tehran–Karaj aquifer for different age groups (i.e., children, teenagers, and adults) during the study period (2007–2018).
From: Human health risk of nitrate in groundwater of Tehran–Karaj plain, Iran
Well No | Children | Teenagers | Adults | Well No | Children | Teenagers | Adults |
|---|---|---|---|---|---|---|---|
1 | − 0.146 | − 0.103 | − 0.083 | 39 | 0.03 | 0.02 | 0.02 |
2 | − 0.009 | − 0.007 | − 0.005 | 40 | − 0.11 | − 0.08 | − 0.06 |
3 | 0.000 | 0.000 | 0.000 | 41 | 0.00 | 0.00 | 0.00 |
4 | 0.000 | 0.000 | 0.000 | 42 | − 0.02 | − 0.01 | − 0.01 |
5 | 0.018 | 0.013 | 0.010 | 43 | 0.00 | 0.00 | 0.00 |
6 | 0.041 | 0.029 | 0.023 | 44 | 0.04 | 0.03 | 0.02 |
7 | 0.032 | 0.023 | 0.018 | 45 | − 0.02 | − 0.02 | − 0.01 |
8 | 0.000 | 0.000 | 0.000 | 46 | − 0.03 | − 0.02 | − 0.02 |
9 | 0.031 | 0.022 | 0.018 | 47 | 0.05 | 0.04 | 0.03 |
10 | − 0.026 | − 0.018 | − 0.015 | 48 | 0.04 | 0.03 | 0.02 |
11 | − 0.110 | − 0.077 | − 0.062 | 49 | − 0.05 | − 0.04 | − 0.03 |
12 | 0.037 | 0.026 | 0.031 | 50 | 0.02 | 0.01 | 0.01 |
13 | 0.014 | 0.010 | 0.008 | 51 | − 0.01 | − 0.01 | − 0.01 |
14 | 0.000 | 0.000 | 0.000 | 52 | 0.05 | 0.04 | 0.03 |
15 | 0.066 | 0.047 | 0.037 | 53 | − 0.05 | − 0.04 | − 0.03 |
16 | 0.000 | 0.000 | 0.000 | 54 | 0.00 | 0.00 | 0.00 |
17 | 0.049 | 0.034 | 0.028 | 55 | 0.02 | 0.01 | 0.01 |
18 | 0.029 | 0.020 | 0.016 | 56 | 0.00 | 0.00 | 0.00 |
19 | 0.027 | 0.019 | 0.016 | 57 | 0.01 | 0.01 | 0.01 |
20 | 0.000 | 0.000 | 0.000 | 58 | 0.03 | 0.02 | 0.02 |
21 | 0.000 | 0.000 | 0.000 | 59 | 0.00 | 0.00 | 0.00 |
22 | 0.044 | 0.031 | 0.025 | 60 | 0.00 | 0.00 | 0.00 |
23 | − 0.037 | − 0.026 | − 0.021 | 61 | 0.06 | 0.04 | 0.03 |
24 | 0.055 | 0.039 | 0.031 | 62 | − 0.15 | − 0.11 | − 0.09 |
25 | 0.00 | 0.00 | 0.00 | 63 | 0.05 | 0.03 | 0.03 |
26 | 0.05 | 0.04 | 0.03 | 64 | − 0.11 | − 0.08 | − 0.06 |
27 | 0.02 | 0.01 | 0.01 | 65 | − 0.01 | − 0.01 | 0.00 |
28 | − 0.05 | − 0.04 | − 0.03 | 66 | 0.05 | 0.04 | 0.03 |
29 | − 0.14 | − 0.10 | − 0.08 | 67 | 0.00 | 0.00 | 0.00 |
30 | 0.04 | 0.03 | 0.02 | 68 | 0.07 | 0.05 | 0.04 |
31 | − 0.01 | − 0.01 | − 0.01 | 69 | 0.03 | 0.02 | 0.02 |
32 | 0.11 | 0.08 | 0.06 | 70 | − 0.08 | − 0.06 | − 0.05 |
33 | 0.01 | 0.01 | 0.01 | 71 | 0.05 | 0.04 | 0.03 |
34 | 0.02 | 0.00 | 0.00 | 72 | − 0.08 | − 0.06 | − 0.05 |
35 | − 0.08 | − 0.06 | − 0.05 | 73 | 0.07 | 0.05 | 0.04 |
36 | 0.11 | 0.08 | 0.06 | 74 | − 0.16 | − 0.11 | − 0.09 |
37 | 0.00 | 0.00 | 0.00 | 75 | 0.04 | 0.03 | 0.02 |
38 | − 0.03 | − 0.02 | − 0.02 |
