A dataset containing attributes for Western Mountains Ecoregion lakes sampled by the U.S. Environmental Protection Agency (EPA) during the National Lakes Assessment (NLA) survey for 2007.
NLA_2007A data frame with 236 rows and 15 attributes:
site ID value.
Albers projection x-coordinate.
Albers projection y-coordinate.
survey design weight.
lake origin category.
chlorophyll-a concentration.
value of the index of macroinvertebrate taxa loss.
total phosphorus concentration.
total nitrogen concentration.
turbidity value.
condition class category ("Good", "Fair", or "Poor") of the chlorophyll-a value.
condition class category of the macroinvertebrate taxa loss index.
condition class category of the total phosphorus value.
condition class category of the total nitrogen value.
condition class category of the turbidity value.