Figure 1.
Bar chart of standardized effects (COD, g O2/L, 3 value, 1 block, 16 experiments, MS = 0.0040, L–linear effect, Q–quadratic effect, p–the absolute value of the standardized effect evaluation).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.