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Exposure levels of farmers and major crops in different regions in 2009–2011.
| Province | Group H % (n) | Group L % (n) | Major Crops |
|---|---|---|---|
| Guangdong | 87.5 (70) | 12.5 (10) | rice, vegetables, orchards |
| Jiangxi | 84.0 (63) | 16.0 (12) | rice, cotton, rapeseed |
| Hebei | 27.2 (22) | 72.8 (59) | wheat, maize, cotton |
