The main pigment in algae. It is used to measure aquatic productivity. Clean Air Act The original Clean Air Act was passed in 1963, but our national air pollution control program is actually based on the 1970 version of the law. The 1990 Clean Air Act Amendments are the most far-reaching versions of the 1970 law. The 1990 amendments are commonly referred to as the 1990 Clean Air Act.
Photosynthetic pigment found in all green plants, and the main pigment in algae. The concentration of chlorophyll a is used to estimate the amount of algae (all phytoplankton in a given area) in surface water. Measured in micrograms per liter (µg/L). While it is normal to find algae in streams and lakes, high levels of algae can lead to low levels of dissolved oxygen in a water body.
A pigment contained in plants that is used to turn light energy into food. Chlorophyll also gives plants their green color.
a blue-black plant pigment having a blue-green alcohol solution
Chlorophyll, the green photosynthetic pigment found chiefly in chloroplasts of plants, occurs in variants of a, b, c, and d. Chlorophyll a is a waxy, blue-black microcrystalline, C55H72MgN4O5, with a characteristic blue-green alcohol solution.
KLOR-eh-fill A A green pigment plants use to harness the energy in sunlight. 75, 149
A key substance in the process of photosynthesis. It is found with photosynthesizing organisms and is used in the RMP as a measure of the abundance of photosynthetic organisms in the water column (phytoplankton).
The green photosynthetic pigment common to all photosynthetic organisms. PICTURE
The green molecule in plant cells that carries out photosynthesis. It is used as an indicator of plant and algae productivity and acts as an empirical link between nutrient concentrations and other biological phenomena in lakes. Higher values suggest deteriorating water quality.
Green pigment present in all plant life and necessary for photosynthesis. The amount present in lake water depends on the amount of algae and is therefore used as a common indicator of water quality.