Showing posts with label Changing Our Air. Show all posts
Showing posts with label Changing Our Air. Show all posts

Wednesday, January 11, 2023

Dirty Air

 


Andrew Nikiforuk writes that we still haven't learned important lessons from COVID:

The past tells us plagues generally end messily; conclude at different times for different classes and regions; and don’t fade into obscurity until something dramatically changes in the ecology of the pathogen’s transmission or how people live alongside the disease.

Charles Forsberg, an MIT nuclear engineer, laid out this truth in a rousing article in Mechanical Engineering magazine.

“Historical amnesia” is what Forsberg called the general assumption that plagues are short-term events conquered by vaccines and drugs.

History, he wrote, “has shown that most diseases are stopped by shutting down disease transmission, not late-arriving vaccines or hospital treatments, and that the most enduring way to stop transmission is via engineered public health systems such as water treatment plants and mosquito control districts.”

In other words, plagues don’t tend to end until their human hosts re-engineer the environment that allows them to thrive.

What must we do?

From Forsberg’s perspective the only way to close the door on this pandemic is to provide “clean air the way engineered systems supply clean water.”

Forsberg is not alone in this blunt and practical assessment. Thousands of engineers and physicists who understand air chemistry now support better indoor air filtration and ventilation as our way out of relentless viral waves and chronic hospitalizations.

One civil engineer, Richard Corsi, who has spent his life trying to improve indoor air quality, even designed a $60 box fan that draws circulating air through filters as a pandemic fighter. Thousands of citizens have built them. And yes they work.

The virus wasn’t being spread by heavy droplets as the medical establishment first believed, but light aerosols that floated through a room like a fog or smoke. In fact schools equipped with good mechanical ventilation can reduce viral transmission by 74 per cent found one recent Italian study.

The complexity scientist Yaneer Bar-Yam also recognized earlier than most public health experts the importance for focusing on critical parameters such as clean air, testing and masks, which act as individual air filters. Why? Because all have ability to choke viral transmission if scaled up properly.

The clear air movement has begun to make progress. The American Society of Heating, Refrigerating and Air-Conditioning Engineers has published a document calling for better air quality as an effective means of reducing viral transmission.

The government of France ordered new CO2 standards for school classrooms, because high CO2 levels not only indicate low air exchange but also high COVID levels.

Coincidentally, a research paper by Harvard medical school’s Edward Goldstein released last month and not yet peer reviewed concludes that in France “children between the ages of 10 and 19 years played the greatest relative role in propagating Omicron epidemics, particularly when schools were open.”

Indoor air expert Corsi, now dean of engineering at UC Davis, believes that vaccines and anti-virals are really important. “But this pandemic is not going anywhere until we get serious about lowering the inhalation dose, folks,” he recently tweeted.

“Doing so is not rocket science. It’s technically simple and just a matter of human will.”

We've known for decades that illness thrives in dirty water. COVID thrives in dirty air.

Image: First Call