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Total number of positive and negative samples for AFM1 concentration and samples exceeding US standards by season.
| Season | Negative Samples | Positive Samples | Percentage of Samples Exceeding US Standards (0.5 ppb) |
|---|---|---|---|
| Winter | 4 | 121 | 87.20 |
| Spring | 1 | 86 | 88.50 |
| Summer | 3 | 120 | 88.62 |
| Monsoon | 1 | 77 | 87.18 |
| Autumn | 8 | 64 | 83.33 |
| Total | 17 | 468 | 87.22 |
