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Contrary to what people are led to believe: Being outdoors does NOT replace physical distance for the prevention of Covid-19 spread. Nor do masks. See the calculator here: https://www.dhs.gov/science-and-technology/sars-airborne-calculator 6 ft (2 m) is not enough if someone is coughing or sneezing. Cough-sneezes can travel at least 23 to 27 ft (7-8 m).

Screen shot calculator samples showing that even with high UV, high humidity and heat the virus does not die instantaneously. 70 F is 21 C.



https://www.dhs.gov/science-and-technology/sars-airborne-calculator

This is not meant to overly frighten people, as that weakens the immune system, too. However, until the pandemic is over people should only engage in truly essential activities and maintain the maximum distance possible, even at home. Air filtration systems should help, too. Most people do have immune systems and most people should be able to handle a small amount of viral particles without falling sick. How much is unknown. However, there are silent spreaders and people should stay at home and remain as socially (physically) distant, as possible.

6 ft (2 m) is not enough if someone is coughing or sneezing. Cough-sneezes can travel at least 23 to 27 ft (7-8 m): “Peak exhalation speeds can reach up to 33 to 100 feet per second (10-30 m/s), creating a cloud that can span approximately 23 to 27 feet (7-8 m). Protective and source control masks, as well as other protective equipment, should have the ability to repeatedly withstand the kind of high-momentum multiphase turbulent gas cloud that may be ejected during a sneeze or a cough and the exposure from them. Currently used surgical and N95 masks are not tested for these potential characteristics of respiratory emissions.” See: Bourouiba L. “Turbulent Gas Clouds and Respiratory Pathogen Emissions: Potential Implications for Reducing Transmission of COVID-19” JAMA. 2020;323(18):1837–1838. doi:10.1001/jama.2020.4756

No one has discussed wind direction and it’s effects, to our knowledge. If you are protecting yourself, then ideally you should be upwind and maintain distance. If you are protecting another person then put yourself downwind. This is educated common sense opinion.

Dr. Fauci: “I’m just making a statement that’s a broad statement, that avoid crowds of any type no matter where you are because that leads to the acquisition and transmission. And I don’t judge one crowd versus another crowd. When you’re in a crowd, particularly if you’re not wearing a mask, that induces the spread.” (July 31, 2020) https://archive.is/JdI36

There are silent spreaders and people should maintain as much physical distance as possible. Anything else and you may be committing suicide or homicide. The BLM “protests” could have been planned with adequate distancing, but we have only found one instance of this, and the distancing broke down as time passed. Protesting and condoning protests during this pandemic is homicide-murder, whether through ignorance or not caring. Masks merely reduce transmission rates; many are poorly fitted, so could theoretically increase rates.

Text accompanying the calculator:
Estimated Airborne Decay of SARS-CoV-2 (virus that causes COVID-19) under a range of temperatures, relative humidity, and UV index

Use the sliders to select the UV index, temperature and relative humidity of interest. Information on how long SARS-CoV-2 would be expected to remain stable in aerosols (airborne) will be displayed in the table below. Users can find the environmental conditions for a specific location by accessing general weather resources online.

Background

Minimizing person-to-person spread of SARS-CoV-2 is one of the main ways to reduce the impact of COVID-19.

Transmission is believed to occur through respiratory droplets produced by talking, coughing and sneezing. Contact with contaminated surfaces and objects may also contribute to spread.

Increased temperature and relative humidity cause a minimal increase in SARS-CoV-2 decay, but the addition of simulated sunlight causes rapid decay of the virus in aerosol.

These data have been used to develop a predictive model to estimate virus decay in aerosols under a limited range of environmental conditions.

The data that supports the decay of SARS-CoV-2 with simulated sunlight (UV) is published in the Journal of Infectious Diseases and can be found here. https://academic.oup.com/jid/article/doi/10.1093/infdis/jiaa334/5856149

Model Caveats

It should be noted that in order to fully assess the hazard posed by aerosols containing SARS-CoV-2, additional information is needed, including how much infectious virus is shed by infected individuals into the air, and the amount of virus that needs to be inhaled to cause infection.

The tool is valid for the following ranges of conditions: 50-86°F, 20-70% relative humidity, and UV indices of 0-10.https://www.dhs.gov/science-and-technology/sars-airborne-calculator

There is a surface calculator at the link.

We reiterate: those participating in and condoning protests in the context of a pandemic are murderers on multiple levels. Not only by the spread of SARS Cov-2, but how many are dying from heart attacks and how many will unnecessarily die of cancer and infections through fear of getting Covid-19? Even after a vaccine, it will take a long time to clear medical checkup backlogs. How many have lost their livelihoods? People will pay dearly for the additional national debt, too.

Unnecessary driving, etc, increases the risk of accidents, which may take a desperately needed hospital ICU bed or ventilator. That’s another reason to stay home.

If you have engaged in behavior which may contribute to spread, pray for forgiveness and change your behavior. Also, be more generally aware and careful, so you don’t spread flu or cold, either.

There needs to be an investigation as to who let the virus loose. Early reports said that local Wuhan officials engaged in a coverup. Was China’s national government complicit? The assumption is yes, but may be more unfair than blaming Trump for riots in Dem led cities. There are almost certainly Chinese Americans, Chinese Canadians, etc., who have insight into this topic due to family contacts in China.

Who benefits the most from Covid-19? Pharmaceutical companies, “vulture” capitalists (an insult to useful vultures, but don’t know of a better term), those who want to get rid of no face mask rules (ie those engaging in criminal activities and hiding their identities with masks; Islamists who want women to wear niqab or other face coverings, which have been outlawed in some countries.)