1 Common triggers of an anaphylactic reaction include drugs, such as penicillin, insect stings, foods (peanuts, shellfish), X-ray dye, and latex. 2  The symptoms of anaphylaxis may vary and can include hives, tongue swelling, vomiting, and even shock.  If someone is at risk, avoidance is the best form of treatment.
Ocean regions with high concentrations of phytoplankton will have shades of blue-green depending upon the type and density of the phytoplankton population there. The basic principle behind the remote sensing of ocean color from space is that the more phytoplankton is in the water, the greener it is.
While it's true that pure water gets its color from refracting light, the ocean is not at all pure. Plankton living in the water has a major effect on the color of the ocean. The Indian and Atlantic Oceans have different temperatures and different concentrations of salt, so different kinds of plankton live in them. Different kinds of plankton reflect different colors, so when you look at the ocean from the shore you see different colors in the water.