Confused about due date and how many weeks I am. I used the Due date calculator on this site and several other sites and my due date came up as 8 weeks. However when I went for an early scan they dated me as being 6 weeks 5 days, that was on Friday so I would be 7 weeks + 2 today according to the scan. My last period was 12 April and I believe I conceived around 26/27 April. Can anyone explain this please. How many weeks am I and when will the baby be due.
Volcanic eruptions emit water vapor and toxic gases into the atmosphere. Learn about the gases emitted from an erupting volcano, such as carbon dioxide, sulfur dioxide, hydrogen sulfide, hydrochloric acid and carbon monoxide and their effects in this video lesson.f significant amounts of these compounds are emitted from a volcanic eruption, they can irritate eyes and respiratory systems. Carbon monoxide can also be released during a volcanic eruption. Carbon monoxide is a gas you may have heard of as a dangerous gas that can come from a faulty heater or appliance in your home.
Aside from Mauna Loa's arguable topographic effects on Iselle, there is another potential impact of volcanoes to consider. Active volcanoes can sometimes affect weatherand climateby discharging gases and particles into the atmosphere.The three dominant gases emitted by volcanoes are water vapor (about 90%), carbon dioxide, and sulfur dioxide. Both water vapor and carbon dioxide are important greenhouse gases.Greenhouse refers to the fact that these gases trap solar radiation.he 1991 Mount Pinatubo eruption (http://pubs.usgs.gov/pinatubo/hoblitt2/index.html) created what is thought to be the largest stratospheric sulfur dioxide injection of the 20th century. For three years following the eruption, the earth's surface cooled by as much as 1.3 degrees Celsius (2.3 degrees Fahrenheit).