latest news: Volcanoes
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Government on standby following Bulusan Volcano phreatic eruption
Several government agencies were placed on standby following the phreatic eruption at Bulusan Volcano, Malacañang announced on Sunday afternoon. According to Acting Presidential Spokesperson Martin Andanar, all concerned agencies were placed on 24/7 standby after an Alert Level 1 was raised over Bulusan. The Alert Level 1 of the Philippine Institute of Volcanology and Seismology […]Philippines Volcanoes
Fluoride levels in river water from the volcanic regions of Cauca (Colombia).
Abstract Fluoride concentrations of 0.5 mg/L in drinking water are considered useful for dental caries prevention. However, fluoride concentrations higher than 1.2 mg/L in water can pose a risk of dental fluorosis due to high exposure to fluoride. The objective is to determine the fluoride concentration in water from aqueducts of different Colombian municipalities of […]Columbia Volcanoes
The Deadly Volcano Eruption in Iceland Which Caused the Bloody French Revolution
A rather innocently looking Laki volcano caused massive changes in European society (Image: Wikimedia Commons The doomsday eruption of the Laki volcanic system caused climate changes across the Northern Hemisphere Between June 8, 1783, and February 7, 1784, the eruption of the Laki volcanic system in the south of Iceland produced 8 million tons of […]Iceland Volcanoes
Identification of low fluoride areas using conceptual groundwater flow model and hydrogeochemical system analysis in the aquifer system on the flanks of an active volcano: Mount Meru, Northern Tanzania
Highlights F–-rich NaHCO3 groundwater affects drinking water quality. Groundwater flow conceptual models for different flanks of Mount Meru Magmatic degassing has an influence on the groundwater chemistry. Map showing low F– zones on the flanks of Mount Meru Abstract This study investigates the localities of low and high F– groundwaters in the aquifer system on […]Tanzania Volcanoes
Spatial variability of the sources and distribution of fluoride in groundwater of the Sanya alluvial plain aquifers in northern Tanzania
Highlights Debris-avalanche deposits dynamics trigger the widespread of fluoride in groundwater. Depth to groundwater enhances the variability of fluoride in volcanic aquifers. Safe groundwater for drinking purposes exists at steep slopes of stratovolcanoes. Deep fractured aquifers are potential sources of safe fluoride water. Irrigation agriculture enhances the variability of fluoride in shallow aquifers. Abstract Groundwater […]Tanzania Volcanoes
Naturally occurring potentially toxic elements in groundwater from the volcanic landscape around Mount Meru, Arusha, Tanzania and their potential health hazard
Highlights Population of Mt. Meru (in EARV) is facing issues with water scarcity and quality. We assess the presence of potentially toxic elements (PTE) in groundwater sources. In some of the samples, concentrations of Mo and U exceed the permissible limits. Other analysed PTEs are within the acceptable limits for drinking purpose. The areas of […]East African Rift Valley Volcanoes
Hydrochemistry and fluoride contamination in Ndali-Kasenda crater lakes, Albertine Graben: Assessment based on multivariate statistical approach and human health risk.
Abstract Hydrochemistry of crater lakes (n=15) in the Ndali-Kasenda cluster was deciphered using standard methods of the American Public Health Association to understand the major ion chemistry; spatial distribution, occurrence, and non-carcinogenic health risks due to exposure to fluoride levels in the lakes in Ndali- Kasenda cluster, Albertine Graben. Numerous economic activities take place in […]Uganda Volcanoes
Variability of naturally occurring fluoride in diverse community drinking-water sources, Tanna Island, Vanuatu.
Abstract ListenReadSpeaker webReader: Listen (Study online here) Large variations in fluoride concentrations exist in natural waters, many of which are the source of community drinking-water supplies. Determining fluoride concentrations in community drinking waters can be challenging in developing Pacific countries such as Vanuatu that have limited laboratory capacity. Knowledge of naturally elevated fluoride concentrations that […]Vanuatu Volcanoes Water Treatment
Advised Not To Bring Dogs To The Volcanic Eruption
Photo by Art Bicnick Kristín Jónsdóttir, group leader of nature conservation at the Icelandic Meteorological Office, has advised dog owners to leave their pets at home when heading up to Geldingadalur. In a short post on Twitter, Kristín states that mineral measurements indicate that fluoride is found in puddles around the eruption site, in addition […]Iceland Volcanoes
Volcanic Ash Threatens Pompeii’s Buried Murals
Tests on excavated paintings revealed corrosive salts coming from surrounding volcanic material Frescoes such as this one, excavated from the buried city of Pompeii, can be severely damaged if they are not preserved carefully. Credit: Marco Cantile Getty Images Smothered under volcanic ash and rocks from the eruption of Mount Vesuvius, the ancient city of […]Italy Volcanoes