Macrocytic RBCs are large so tend to have a higher MCH, while microcytic red cells would have a lower value.. MCH is one of three red blood cell indices (MCHC and MCV are the other two). The measurements are done by machine and can help with diagnosis of medical problems.
Alaska's Bogoslof Volcano. Bogoslof volcano, located in the Aleutian Islands about 98 km (61 mi) northwest of Dutch Harbor/Unalaska, is in an active eruption sequence that began in mid-December 2016 and continues today.
An ash-and-steam plume rises above Pavlof volcano on November 13, 1996, as seen from Nelson Lagoon, about 70 km NE of the volcano. Intermittent small ash and strombolian eruptions began on September 15, 1996. Lava fountains fed a lava flow. The last ash eruption was reported on January 3, 1997.