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-IncidenceAggregation County) — national totals match the earlier pooled results exactly. Combined mortality = Pope et al. (PM2.5) + Turner et al. (Ozone).
Cumulative attributable mortality, PM2.5 + ozone combined, 2032–2050. Color deepens as a county's running total grows, the way saturated rainfall totals darkened over Houston as Harvey stalled.