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Table 1 Descriptive statistics of variables used in the study (Data in December, January and February were excluded)

From: Acute health effects associated with satellite-determined cyanobacterial blooms in a drinking water source in Massachusetts

Variable N Mean Std Dev Minimum Maximum
Daily count of gastrointestinal illness 1100 72.57 14.85 36 132
Daily count of respiratory illness 1100 79.13 29.88 27 206
Daily count of dermal illness 1100 24.24 7.38 6 55
Daily count of cyanobacteria cells (maximum from 5 pixels) 273 76,280 101,572 10,000 575,440
Daily O3 (ppm) 1100 0.03 0.01 0.005 0.07
Daily SO2 (ppb) 1100 3.63 3.71 0 35.9
Daily NO2 (ppm) 1100 29.23 9.85 8 68
Daily CO (ppm) 1100 0.36 0.18 0 1.9
Daily PM2.5 (μg/m3) 1100 9.48 5.30 1.1 57.4
Daily precipitation (mm) 1100 4.00 9.94 0 114.89
Daily mean temperature (°C) 1100 14.73 7.53 −8 30.6