condition mean min max 12pM Fe,Midday 98.0382 98.0382 98.0382 12pM Fe,Midnight 79.6037 76.0034 83.204 58pM Fe,Midday 76.4966 76.4966 76.4966 58pM Fe,Midnight 50.293142857142854 0.0 66.9748 233pM Fe,Midnight 59.2644 58.0111 60.9471 1160pM Fe,Midday 85.97185714285715 76.6881 94.0646 1160pM Fe,Midnight 39.422133333333335 30.376 48.0451 High carbon,Dark 70.50216666666667 45.2027 101.247 High carbon,Light 76.64921538461539 32.5311 120.772 Low carbon,Dark 73.8612 73.8612 73.8612 Phloroglucinol 75.17253333333333 64.2257 81.1397 Silicon starvation,12h 73.022 73.022 73.022