In 2005, it was found that average nitrogen levels in the leachate from Plot B were 8.2 mg/L. The data from the study supports which of the following conclusions?
F. Kentucky bluegrass should not be used for lawns in suburbs near a public waterway.
G. Once high-nitrogen fertilizer has been applied to a suburban lawn, nitrogen levels in the leachate will remain high, even if low-nitrogen fertilizer is later applied.
H. Following the application of low-nitrogen fertilizers, it will take more than one year to reach safe nitrogen levels in leachate from suburban lawns
previously fertilized with high-nitrogen fertilizer.
J. The measurable concentration of nitrogen in leachate from suburban lawns will always be within the range considered safe by the Environmental Protection Agency, as long as irrigation is kept to a minimum.