Persistence of A-234 nerve agent on indoor surfaces

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG45__%2F25%3A00563261" target="_blank" >RIV/60162694:G45__/25:00563261 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.chemosphere.2024.141968" target="_blank" >https://doi.org/10.1016/j.chemosphere.2024.141968</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chemosphere.2024.141968" target="_blank" >10.1016/j.chemosphere.2024.141968</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Persistence of A-234 nerve agent on indoor surfaces

Popis výsledku v původním jazyce

Understanding the fundamental physical characteristics of extremely toxic compounds and their behavior across different environments plays a crucial role in assessing their danger. Additionally, this knowledge informs the development of protocols for gathering forensic evidence related to harmful chemicals misuse. In 2018, former Russian spy Sergei Skripal and his daughter were poisoned in Salisbury, England, with a substance later identified as the unconventional nerve agent A-234. Contamination with the compound was found on items inside Skripal's home. The aim of this paper was to determine the persistence of A-234 on selected indoor surfaces. Ceramics, aluminum can, laminated chipboard, polyvinyl chloride (PVC) floor tile, polyethylene terephthalate (PET) bottle, acrylic paint and computer keyboard were used as matrices. The decrease in surface contamination and further fate of the compound was monitored for 12 weeks. Persistence determination involved optimizing the wipe sampling method. Simultaneously, evaporation from the surface and permeation of the contaminant into the matrix were closely monitored. The experimental findings indicate that the nerve agent exhibits remarkable persistence, particularly on impermeable surfaces. Notably, the process of A-234 evaporation plays a minor role in determining its fate, with detectable concentrations observed solely above solid, non-porous surfaces such as ceramics and aluminum can. The surface persistence half-life varied significantly, ranging from 12 minutes to 478 days, depending on the material. The article has implications for emergency response protocols, decontamination strategies, public health and crime scene investigations.

Název v anglickém jazyce

Persistence of A-234 nerve agent on indoor surfaces

Popis výsledku anglicky

Understanding the fundamental physical characteristics of extremely toxic compounds and their behavior across different environments plays a crucial role in assessing their danger. Additionally, this knowledge informs the development of protocols for gathering forensic evidence related to harmful chemicals misuse. In 2018, former Russian spy Sergei Skripal and his daughter were poisoned in Salisbury, England, with a substance later identified as the unconventional nerve agent A-234. Contamination with the compound was found on items inside Skripal's home. The aim of this paper was to determine the persistence of A-234 on selected indoor surfaces. Ceramics, aluminum can, laminated chipboard, polyvinyl chloride (PVC) floor tile, polyethylene terephthalate (PET) bottle, acrylic paint and computer keyboard were used as matrices. The decrease in surface contamination and further fate of the compound was monitored for 12 weeks. Persistence determination involved optimizing the wipe sampling method. Simultaneously, evaporation from the surface and permeation of the contaminant into the matrix were closely monitored. The experimental findings indicate that the nerve agent exhibits remarkable persistence, particularly on impermeable surfaces. Notably, the process of A-234 evaporation plays a minor role in determining its fate, with detectable concentrations observed solely above solid, non-porous surfaces such as ceramics and aluminum can. The surface persistence half-life varied significantly, ranging from 12 minutes to 478 days, depending on the material. The article has implications for emergency response protocols, decontamination strategies, public health and crime scene investigations.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10500 - Earth and related environmental sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemosphere

ISSN

0045-6535

e-ISSN

1879-1298

Svazek periodika

357

Číslo periodika v rámci svazku

červen

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

141968

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85190613298