Improving and protecting the environmental health of Casco Bay.
Higher levels of nitrogen are found closer to shore where salinity is lower. This indicates that much of the excess nitrogen found in Casco Bay is coming from land-based sources such as polluted stormwater runoff and sewage treatment plants.
y = -0.03x + 1.1, R2 = 0.46*
*The trend lines of the graphs throughout this report illustrate the pattern of the data. The equation (y=) describes the trend line that best fits the data. The R2 value tells us how well the data fit around the trend line, indicating the reliability of the line.