Thursday 2 December 2021

Poas Eruptions Triggered GAM Air Pollution

Paying the bills

Latest

QR code: businesses avoid asking for it, sacrificing capacity

QCOSTARICA - Few, if any, businesses began this December...

Daniel Salas: Not a matter of if, but when Omicron arrives in Costa Rica

QCOSTARICA - "Omicron has the potential to worsen the...

Omicron variant arrives in Latin America with first two cases in Brazil

(AFP) The government of Sao Paulo, Brazil, confirmed on...

Omicron variant of Covid unravels travel industry’s comeback plans

Tourism businesses that were just finding their footing after...

Ruta 32 Re-opened!

QCOSTARICA - The MOPT announced the re-opening of the...

Sala IV gives the green light to a bill that legalizes the production of hemp and medicinal cannabis

QCOSTARICA - Costa Rica's Constitutional Court, also known as...

Ruta 32 remains closed due to weather conditions

QCOSTARICA - For the second day in a row,...
Paying the bills

Share

Gases emitted by two volcanos Poás (foreground) and Turrialba (farthest) increased the amount of sulfur dioxide in the environment. In the photo, captured this Thursday at 6:40 a.m. from an airplane, you can also see the Barva and Irazú volcanoes. (Photo by Laura Barboza Rodríguez)

Q COSTA RICA -The Poas volcano eruptions are triggering air pollution in the Greater Metropolitan Area (GAM) of San Jose at levels that exceed the maximum values ​​allowed by the World Health Organization (WHO).

This means that the residents of GAM that includes the capital city (San Jose) and the cities of Alajuela, Cartago and Heredia are breathing high amounts of sulfur, carbon dioxide and sometimes ash particles that can affect their health.

The pollution levels were confirmed from measurements made by the Volcanological and Seismological Observatory of Costa Rica (Ovsicori) on Thursday, April 13 at 2:40 pm, almost an hour before the strongest eruption that day and 3:40 pm.

- Advertisement -

The air quality at the Hatillo (south side of San Jose) monitoring station recorded an average sulfur dioxide concentration of 81 parts per billion (ppb), with a maximum peak of 99.1 ppb, which exceeds the WHO limit of 75 ppb.

According to Jorge Herrera, coordinator of the environmental analysis laboratory of the Universidad Nacional (UNA) – National University, the Poás gas emission is modifying the air quality in the GAM, which was already compromised due to the eruptions of the Turrialba volcano, as well as contamination of the industries and vehicles.

Other monitoring stations located in Coronado (San Jose) and Alto de Ochomogo (Cartago) also had a high gas concentration that day, explained Herrera.

Measurements of sulfur dioxide and carbon dioxide at the edge of the Poas volcano active crater, between April 10 and 14, are the highest recorded at the volcano, revealed the UNA.

The monitoring equipment was destroyed by subsequent eruptions.

Scientists interpret these values ​​ss the presence of fresh magna very close to the surface.

- Advertisement -

All these data are consistent with the detection of a sulfur dioxide cloud over the central region of Costa Rica that was identified by the NASA AURA satellite during the days of highest concentrations.

Sulfur dioxide is a colorless gas with a penetrating, choking odor that can damage the respiratory system with only a short exposure to high concentrations.

Children, the elderly and people with asthma are particularly sensitive to these emanations that can cause health problems.

Herrera explained that the emissions generated by the two volcanos (Poas and Turrialba) are natural processes, but are a source of pollution.

- Advertisement -

The expert added that today, Friday, the Ovsicori and the Ministry of Health are going to erect a measuring station in Fraijanes and Sabanilla (Alajuela) and soon in Grecia, to transmit real-time air quality.

- Advertisement -
Paying the bills
Ricohttp://www.theqmedia.com
"Rico" is the crazy mind behind the Q media websites, a series of online magazines where everything is Q! In these times of new normal, stay at home. Stay safe. Stay healthy.

Related Articles

Cold thrust maintains accelerated winds and cold in the country

QCOSTARICA - Cold thrust number four will continue to generate accelerated...

Temperatures dip below 5 degrees Celsius in four peaks of Costa Rica

Correction: Not enough coffee this morning, had the temperature conversions wrong....

Subscribe to our stories

To be updated with all the latest news, offers and special announcements.

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.