The CO2 emission in La Bombilla is 30 times greater than that of the entire volcanic cone

Image of the La Bombilla neighborhood taken by a drone from the production company I Love the World. / I LOVE THE WORLD

The coastal neighborhood, next to Puerto Naos, registers high concentrations of carbon dioxide. Involcan has installed a network with 40 observation points

CANARY ISLANDS7 The Gran Canarian palms

Research carried out by the Vocanological Institute of the Canary Islands (Involcan) reveals that
the amount of carbon dioxide (CO2) per unit area (square kilometer) emitted into the atmosphere by the La Bombilla area (0.033 km2) is around 30 times higher than the amount of CO2 per unit area (km2) that is emitted through the entire volcanic edifice of Cumbre Vieja (220 km2), according to sources from the scientific entity in a statement.

Currently the area of
La Bombilla has an instrumental network for monitoring carbon dioxide (CO2) in the ambient air (outdoors) made up of five stations, two of which are from the General Directorate of Security and Emergencies of the Government of the Canary Islands (DGSE-Gobcan), another two from the National Geographic Institute (IGN) and 1 from the Institute Volcanological of the Canary Islands (Involcan).

Sometimes the concentrations of CO2 in the ambient air (outdoors), 30 centimeters from the ground, which register
the DGSE-Gobcan and IGN stations exceed 40,000 ppm (4%), the upper limit that the sensors can detect of these stations, registering average daily values ​​of CO2 between 10,000 ppm (1%) and 30,000 ppm (3%).

In the case of the Involcan station, daily average values ​​of CO2 have been recorded between 50,000 ppm (5%) and 215,000 ppm (21.5%).

Outdoors and in poorly ventilated areas, as occurs in some parts of La Bombilla, repeated exposure to CO2 concentrations between 30,000 ppm (3%) and 50,000 ppm (5%) causes headaches and the respiratory rate accelerates. , but this is lethal in the case of exposure to CO2 concentrations of the order of 150,000 ppm (15%).

Situation in Puerto Naos

Currently the area of
Puerto Naos has an instrumental network for monitoring carbon dioxide (CO2) made up of seven stations, two of which are from the DGSE-Gobcan and five from Involcan and the University of Azores (Portugal).

Of this instrumental network, three stations record the amount of CO2 in the outside ambient air while the remaining four record the amount of CO2 in the ambient air inside buildings in Puerto Naos.

As in La Bombilla,
the stations in Puerto Naos for monitoring CO2 in the outdoor ambient area exceed the value of the upper limit that their sensors can detectregistering daily average values ​​of CO2 between 5,000 ppm (0.5%) and 30,000 ppm (3%).

The records observed by this instrumental network in the air inside buildings oscillate mainly between 5,000 ppm (0.5%) and 40,000 ppm (4%). According to established criteria for indoor air quality, the time people spend indoors should not exceed 30 minutes if CO2 concentrations are between 5,000 ppm (5%) and 25,000 ppm (2.5%). ) and immediate ventilation is recommended.

observation points

On the other hand,
Involcan has recently installed a non-instrumental network in Puerto Naos of 40 observation points inside buildings (ground floor at street level) thanks to the collaboration of owners and administrators of the area with the aim of evaluating a possible zoning of this volcanic hazard in Puerto Naos.

This network of alkaline traps does not provide information on the concentrations of CO2 inside the buildings, but it does allow us to know the amount of CO2 that can be trapped in them.

The exposure of these alkaline traps is approximately 7 days and the researchers of the
involcan have established that an acceptable indoor ambient air quality should register a value lower than 120 milligrams of CO2 per day trapped by this type of traps.

Exposure to CO2 concentrations of 150,000 ppm (parts per million) can be fatal. The Involcan station has detected in La Bombilla daily average values ​​of CO2 between 50,000 ppm and 215,000 ppm

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