Institute of Occupational Medicine pesticides from food and other sources. This work demonstrated that although it is likely that most people are exposed to low levels of a wide variety of pesticide compounds it is unlikely that such exposure would have measurable effects on the health of the population. In 1995 the Soufriere Hills volcano on the Caribbean island of Montserrat erupted, spewing volcanic ash containing large amounts of the crystalline silica mineral cristobalite over the surrounding area. IOM scientists investigated the health of people who lived on the island. In general the exposure of the residents was low, because most people lived well
Barren Island (Andaman Islands) National Institute of Oceanography (NIO) spotted the volcano erupting on 23 January 2017. Abhay Mudholkar, the head of the team, said, "The volcano is erupting in small episodes of about five to ten minutes. During the day, only ash clouds were observed. However, after sundown, red lava fountains were spewing from the crater into the atmosphere and hot lava flowed streaming down its slopes." Based on Ar-Ar dating of samples from Barren Island it is now established that the oldest subaerial lava flows of the volcano are 1.6 million years old and the volcano is located on an oceanic crust