--- title: "DHS S&T Launch Online SARS-CoV-2 Airborne Decay Calulator" description: "CBRNe World provides those tasked with defending against CBRN and IED threats with the essential practical, scientific and political information. Access the current and previous issues of the magazine by registering as a member." url: "https://cbrneworld.com/news/subscribers/dhs-s-t-launch-online-sars-cov-2-airborne-decay-calulator" date: "2026-07-30T21:14:07+00:00" language: "en-GB" --- # DHS S&T Launch Online SARS-CoV-2 Airborne Decay Calulator Written by Gwyn Winfield on 16 June 2020. The Department of Homeland Security Science and Technology Directorate (S&T) added an online calculator last week that estimates the natural decay of SARS-CoV-2 in the air. The calculator is based on research still underway at S&T’s National Biodefense Analysis and Countermeasures Center in Maryland. “This groundbreaking research into how COVID-19 spreads and the new interactive model from DHS S&T will have far-reaching impact,” William Bryan, DHS Senior Official performing the duties of the Under Secretary for Science & Technology. “The easily accessible tool allows officials, the medical community, and individuals to make more informed decisions to protect their own health and well-being.” Dubbed the airborne predictive model, the tool builds on a previous S&T tool that modeled the survival of SARS-CoV-2 on non-porous surfaces indoors. The predictive model evaluates and factors in the impact of conditions such as temperature, ranging from 50 to 86 degrees Fahrenheit; humidity, ranging from 20 to 70 percent; and sunlight, charting the effects of an ultraviolet index up to 10. This tool goes to show how much more we have learned about SARS-CoV-2 in the past couple of months, and it is a fascinting tool to play with, even if you aren't scienfitically minded. Head to their website to check it out both the airborne [](https://www.dhs.gov/science-and-technology/sars-airborne-calculator) and surface decay [](https://www.dhs.gov/science-and-technology/sars-calculator) calculators [Threat](https://cbrneworld.com/component/tags/tag/threat), [Protection](https://cbrneworld.com/component/tags/tag/protection), [Biological](https://cbrneworld.com/component/tags/tag/biological) ## Schema ```json { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "News", "item": "https://cbrneworld.com/news" }, { "@type": "ListItem", "position": 2, "name": "Subscribers", "item": "https://cbrneworld.com/news/subscribers" }, { "@type": "ListItem", "position": 3, "name": "DHS S&T Launch Online SARS-CoV-2 Airborne Decay Calulator", "item": "https://cbrneworld.com/news/subscribers/dhs-s-t-launch-online-sars-cov-2-airborne-decay-calulator" } ] } ``` ```json { "@context": "https://schema.org", "@type": "NewsArticle", "mainEntityOfPage": { "@type": "WebPage", "@id": "https://cbrneworld.com/news/subscribers/dhs-s-t-launch-online-sars-cov-2-airborne-decay-calulator" }, "headline": "DHS S&T Launch Online SARS-CoV-2 Airborne Decay Calulator", "description": "The Department of Homeland Security Science and Technology Directorate (S&T) added an online calculator last week that estimates the natural decay of SARS-CoV-2 in the air. The calculator is based on research still underway at S&T’s National Biodefense Analysis and Countermeasures Center in Maryland. “This groundbreaking research into how COVID-19 spreads and the new interactive model from DHS S&T will have far-reaching impact,” William Bryan, DHS Senior Official performing the duties of the Under Secretary for Science & Technology. “The easily accessible tool allows officials, the medical community, and individuals to make more informed decisions to protect their own health and well-being.” Dubbed the airborne predictive model, the tool builds on a previous S&T tool that modeled the survival of SARS-CoV-2 on non-porous surfaces indoors. The predictive model evaluates and factors in the impact of conditions such as temperature, ranging from 50 to 86 degrees Fahrenheit; humidity, ranging from 20 to 70 percent; and sunlight, charting the effects of an ultraviolet index up to 10. This tool goes to show how much more we have learned about SARS-CoV-2 in the past couple of months, and it is a fascinting tool to play with, even if you aren't scienfitically minded. Head to their website to check it out both the airborne https://www.dhs.gov/science-and-technology/sars-airborne-calculator and surface decay https://www.dhs.gov/science-and-technology/sars-calculator calculators", "image": { "@type": "ImageObject", "url": "https://cbrneworld.com/" }, "publisher": { "@type": "Organization", "name": "CBRNe World Magazine", "logo": { "@type": "ImageObject", "url": "https://cbrneworld.com/images/default/Asset%201.png" } }, "author": { "@type": "Person", "name": "Gwyn Winfield", "url": "https://cbrneworld.com/news/subscribers/dhs-s-t-launch-online-sars-cov-2-airborne-decay-calulator" }, "datePublished": "2020-06-16T15:02:28+01:00", "dateCreated": "2020-06-16T15:02:28+01:00", "dateModified": "2020-06-16T15:02:28+01:00" } ```