Scientists say they have found the cleanest air on earth

Published

4 years ago

June 2, 2020

Aerosol filter samplers probe the air over the Southern Ocean on the Australian Marine National Facility's R/V Investigator ship.

In the first study of its kind on the composition of bioaerosols in the Southern Ocean, researchers from Colorado State University identified regions of the atmosphere that remained unchanged by human activity.

Weather and climate are closely interrelated, connecting every part of the world with other regions. As climate change quickly due to human activity, scientists and researchers struggle to find corners of the earth that are not affected by humans.

However, Professor Sonia Kreidenweis and her team suspected that the air above the Southern Ocean was least affected by humans and dust from the continents of the world.

The researchers found that the boundary layer of air, which feeds the lower clouds above the Southern Ocean, is free of aerosol particles produced by human activity. – including burning fossil fuels, growing certain crops, producing fertilizer, and disposal of wastewater – or transported from other countries around the world.

Air pollution caused by aerosols, which are particles and solid and liquid gases that are suspended in the air.

The researchers decided to study what is in the air, and where it came from, using bacteria in the air as a diagnostic tool to deduce the properties of the lower atmosphere.

Research scientist and research co-author Thomas Hill explains that “the aerosols that control the properties of SO (Southern Ocean) clouds are strongly linked to ocean biological processes, and Antarctica appears to be isolated from the spread of microorganisms to the south and the deposition of nutrients from the southern continent,” he said in a statement.

“Overall, this shows that SO is one of the few places on Earth that has been slightly affected by anthropogenic activities,” he added.

The scientists tasted air at sea level – part of the atmosphere that has direct contact with the sea – while boarding a research ship traveling south to the Antarctic ice bank from Tasmania, Australia. The scientists then examined the composition of microbes in the air, which were found in the atmosphere and were often scattered thousands of kilometers by wind.

Using DNA sequencing, source tracking, and wind back trajectory scientist and first author Jun Uetake found that the origin of microbes came from the sea.

From the composition of microbial bacteria, the researchers concluded that aerosols from distant soil masses and human activities, such as pollution or soil emissions caused by land use changes, do not move south and into the air.

Scientists say that the results show a marked difference with all other research from the oceans in both the northern and subtropical hemisphere, which found that most microbes originated in the windward continent.

In the study, published Monday at Proceedings of the National Academy of Sciences journals, scientists describe the area as “truly pure.”

Air pollution has become a global public health crisis, and kills seven million people each year, according to the World Health Organization (WHO).

Research has shown that air pollution increases risk heart disease, stroke and lung cancer.

More than 80% of people living in urban areas who monitor air pollution are exposed to air quality levels that exceed WHO guidelines, the health organization said, and low and middle income countries suffer the highest exposure.

However, as research shows, air pollution can cross geographical boundaries, and affecting people hundreds of miles away from the place of origin.

Goodwin Townsend

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Portuguese historical films will premiere on 29 December.

Published

1 year ago

December 20, 2022

Herb Adkins

Portuguese historical films will premiere on 29 December.

Method Media Bermuda will present the documentary FABRIC: Portuguese History in Bermuda on Thursday, December 29 at the Underwater Research Institute of Bermuda.

A spokesperson said: “Method Media is proud to bring Bermuda Fabric: Portugal History to Bermuda for its 5th and 6th showing at the Bermuda Underwater Observatory. In November and December 2019, Cloth: A Portuguese Story in Bermuda had four sold-out screenings. Now that Bermuda has reopened after the pandemic, it’s time to bring the film back for at least two screenings.

“There are tickets Ptix.bm For $ 20 – sessions at 15:30 and 18:00. Both screenings will be followed by a short Q&A session.

Director and producer Milton Raboso says, “FABRIC is a definitive account of the Portuguese community in Bermuda and its 151 years of history, but it also places Bermuda, Acors and Portugal in the world history and the events that have fueled those 151 years.

“It took more than 10 years to implement FABRIC. The film was supported by the Minister of Culture, the Government of the Azores and private donors.

“Bermuda Media Method [MMB] Created in 2011 by producer Milton Raposo. MMB has created content for a wide range of clients: Bermuda’s new hospital renovation, reinsurance, travel campaigns, international sports and more. MMB pays special attention to artistic, cultural and historical content.

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Herb Adkins

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CRISTANO RONALDO CAN MAKE UP A GIANT IN CARIOCA AND PORTUGUESE TECHNICIAN SAYS ‘There will be room’

Published

1 year ago

December 20, 2022

Herb Adkins

CRISTANO RONALDO CAN MAKE UP A GIANT IN CARIOCA AND PORTUGUESE TECHNICIAN SAYS 'There will be room'

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Maestro de Braga is the first Portuguese in the National Symphony Orchestra of Cuba.

Published

1 year ago

December 19, 2022

Herb Adkins

Maestro de Braga is the first Portuguese in the National Symphony Orchestra of Cuba.

Maestro Filipe Cunha, Artistic Director of the Philharmonic Orchestra of Braga, has been invited to conduct the Cuban National Symphony Orchestra, as announced today.

According to a statement sent by O MINHO, “he will be the first Portuguese conductor to conduct this orchestra in its entire history.”

In addition to this orchestra, the maestro will also work with the Lyceo Mozarteum de la Habana Symphony Orchestra.

The concerts will take place on 4 and 12 March 2023 at the National Theater of Cuba in Havana.

In the words of the maestro, quoted in the statement, “these will be very beautiful concerts with difficult but very complex pieces” and therefore he feels “very motivated”.

From the very beginning, Rachmaninoff’s Piano Concerto No. 2 will be performed by an Italian pianist (Luigi Borzillo), whom the maestro wants to bring to Portugal later this year. In the same concert, Mendelshon’s First Symphony will be performed.

Then, at the second concert, in the company of the Mexican clarinetist Angel Zedillo, he will perform the Louis Sfora Concerto No. 2. In this concert, the maestro also conducts Tchaikovsky’s Fifth Symphony.

“This is an international recognition of my work. An invitation that I accept with humility and great responsibility. I was surprised to learn that I would be the first Portuguese member of the Cuban National Symphony Orchestra. This is a very great honor,” the maestro said in a statement.

“I take with me the name of the city of Braga and Portugal with all the responsibility that goes with it, and I hope to do a good job there, leaving a good image and putting on great concerts. These will be very special concerts because, in addition to performing pieces that I love, especially Rachmaninov and Tchaikovsky, I will be directing two wonderful soloists who are also my friends. It will be very beautiful,” concludes Filipe Cunha.

Herb Adkins

Proud web evangelist. Travel ninja. Creator. Freelance food nerd. Passionate bacon fanatic.