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Story summary
- Zach Lahn, the Republican who won Iowa’s gubernatorial primary, pledged cancer action.
- Iowa’s cancer rate was 506 per 100,000 in 2022, above the national 442 and rising since 2012.
- Researchers link the rate to heavy fertilizer use, nitrate runoff and weak pesticide rules.
- Des Moines water utility banned lawn watering and rationed water after nitrate spikes, while the GOP legislature approved a $320 million water-quality fund critics deem insufficient.
