---
title: Gas Exposure in Car Parks | News | Shawcity
description: Discover the risks of gas exposure in multi storey subterranean car parks and how monitoring improves safety.
image: https://www.shawcity.co.uk/hubfs/GasDetectionInCarparks.jpg
---

- [Training](https://www.shawcity.co.uk/training)
- [Service & Calibration](https://www.shawcity.co.uk/gas-detector-service-calibration-uk)
- [Hire](https://www.shawcity.co.uk/gas-detector-hire-uk)
- [Customer Support](https://www.shawcity.co.uk/customer-support)
- About Us 
    - [About Shawcity](https://www.shawcity.co.uk/about-shawcity)
    - [Vacancies](https://www.shawcity.co.uk/shawcity-careers)
- Resources 
    - [Events](https://www.shawcity.co.uk/events)
    - [News](https://www.shawcity.co.uk/news)
- [Contact Us](https://www.shawcity.co.uk/contact)

[![Shawcity Logo](https://www.shawcity.co.uk/hs-fs/hubfs/Brand%20Logos/NEW%20colour%20logo%2c%2050%20and%20strap.png?height=70&name=NEW%20colour%20logo%2c%2050%20and%20strap.png)](https://www.shawcity.co.uk/)

[Login](https://products.shawcity.co.uk/account/login) <https://products.shawcity.co.uk/account> <https://products.shawcity.co.uk/pages/wishlist>

- Gas Detection 
    - [Portable Gas Detection](https://products.shawcity.co.uk/collections/portable-gas)
    - [Fixed Gas Detection](https://www.shawcity.co.uk/fixed-gas)
    - [Ground Gas/ Contaminated Land](https://products.shawcity.co.uk/collections/ground-gas-contaminated-land)
    - [Calibration Gas](https://products.shawcity.co.uk/collections/calibration-gas)
- [Air Quality & Dust](https://products.shawcity.co.uk/collections/air-quality-and-dust)
- [Fit Testing](https://products.shawcity.co.uk/collections/fit-testing)
- [OEM Gas Sensors](https://products.shawcity.co.uk/collections/oem-gas-sensors)
- [Chromium-6](https://products.shawcity.co.uk/collections/chromium-6-detection)
- [Drug & Alcohol](https://products.shawcity.co.uk/collections/drugs-alcohol-testing)
- [Accessories](https://products.shawcity.co.uk/collections/accessories)

[![Shawcity Logo](https://www.shawcity.co.uk/hs-fs/hubfs/Brand%20Logos/NEW%20colour%20logo%2c%2050%20and%20strap.png?height=70&name=NEW%20colour%20logo%2c%2050%20and%20strap.png)](https://www.shawcity.co.uk/)

![](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/hamburger-icon.svg) ![](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/menu-close.svg)

Menu

- Products 
    - [Portable Gas Detection](https://products.shawcity.co.uk/collections/portable-gas)
    - [Fixed Gas Detection](https://products.shawcity.co.uk/collections/fixed-gas-monitoring)
    - [Ground Gas/Contaminated Land](https://products.shawcity.co.uk/collections/ground-gas-contaminated-land)
    - [Air Quality & Dust](https://products.shawcity.co.uk/collections/air-quality-and-dust)
    - [Fit Testing](https://products.shawcity.co.uk/collections/fit-testing)
    - [OEM Gas Sensors](https://products.shawcity.co.uk/collections/oem-gas-sensors)
    - [Chromium-6](https://products.shawcity.co.uk/collections/chromium-6-detection)
    - [Drugs & Alcohol](https://products.shawcity.co.uk/collections/drugs-alcohol-testing)
    - [Accessories](https://products.shawcity.co.uk/collections/accessories)
    - [Calibration Gas](https://products.shawcity.co.uk/collections/calibration-gas)
- [Training](https://www.shawcity.co.uk/training)
- [Service & Calibration](https://www.shawcity.co.uk/gas-detector-service-calibration-uk)
- [Hire](https://www.shawcity.co.uk/gas-detector-hire-uk)
- [Customer Support](https://www.shawcity.co.uk/customer-support)
- About Us 
    - [About Shawcity](https://www.shawcity.co.uk/about-shawcity)
    - [Vacancies](https://www.shawcity.co.uk/shawcity-careers)
- Resources 
    - [Brochure](https://www.shawcity.co.uk/hubfs/Shawcity%20overview%20brochure%20MAR%2025%20web.pdf)
    - [News & Events](https://www.shawcity.co.uk/news)

[CONTACT US](https://www.shawcity.co.uk/contact)

##### [**News**](https://www.shawcity.co.uk/news/tag/news)

# The Risk of Gas Exposure in Multi-storey & subterranean car parks

**Shawcity**|12 January 2023

![The Smart P detector from Crowcon ltd](https://www.shawcity.co.uk/hubfs/GasDetectionInCarparks.jpg)

There are a variety of harmful pollutants emitted by vehicles. Specifically, carbon monoxide (CO) and nitrogen dioxide (NO2) are toxic gases that damage the environment and human health. There is usually no natural ventilation in underground and multi-storey car parks, so these gases can concentrate in one area and have a potentially harmful impact on anyone within these locations. For this reason, the European Standard *EN 50545-1* specifies a requirement for remote gas sensors (RGS) and control units (CU) to be deployed in car parks.

 CO and NO2 are both found in car parks and their characteristics make them particularly dangerous. CO is colourless and odourless, making it hard to recognise without the correct monitoring equipment while NO2 is a gaseous air pollutant created during the burning of fossil fuels. Even at low exposure levels, CO and NO2 can pose significant health risks. CO poisoning can cause headaches, dizziness, sickness, nausea, fatigue, disorientation and confusion, chest and muscle pain, along with shortness of breath. Frequent overexposure to NO2 could cause cardiopulmonary effects, decreased lung function/growth, respiratory issues, and increased complications for allergic responses. At worst both gases could contribute to premature death.

Ventilation is the key to ensuring that gas levels are kept at acceptable levels and ensuring prevention of toxic fume build-up. Ventilation units can be linked with gas detectors allowing ventilation to be increased when gases reach pre-set levels, and then decreased when acceptable levels are restored. This not only improves the air quality of the site but helps reduce costly bills, by improving energy efficiency.

[Learn more about Fixed gas detection and the specially designed Smart P series](https://products.shawcity.co.uk/products/smart-p)

##### Share <https://www.linkedin.com/shareArticle?mini=true&url=https://www.shawcity.co.uk/news/gas-exposure-car-parks> <https://twitter.com/intent/tweet?text=https://www.shawcity.co.uk/news/gas-exposure-car-parks> <https://www.facebook.com/sharer/sharer.php?u=https://www.shawcity.co.uk/news/gas-exposure-car-parks>

[Previous post](https://www.shawcity.co.uk/news/portable-quantifit2-fit-testing) [Next post](https://www.shawcity.co.uk/news/diacetyl-exposure-food-industry)

## **Latest posts**

##### [![](https://www.shawcity.co.uk/hubfs/AI-Generated%20Media/Images/Hydrogen%20Sulphide%20Gas%20Cloud%20Over%20Industrial%20Zone.png) Guides & Insights **Why Smell Cannot Reliably Warn You of H₂S** 25 August 2026](https://www.shawcity.co.uk/news/why-smell-cannot-reliably-warn-of-h2s)

##### [![](https://www.shawcity.co.uk/hubfs/plant-milk-day.png) Blogs **How Is Plant Milk Made? Pasteurisation & Workplace Safety** 21 August 2026](https://www.shawcity.co.uk/news/plant-milk-production-pasteurisation-safety)

##### [![](https://www.shawcity.co.uk/hubfs/bakery-heat-stress.png) Guides & Insights **Bakery Heat Stress: Summer Monitoring & Controls** 18 August 2026](https://www.shawcity.co.uk/news/bakery-heat-stress-summer-production)

[Back to blog](https://www.shawcity.co.uk/news)

![Newsletter icon](https://www.shawcity.co.uk/hubfs/Icons/newsletter-icon.svg)

### **Sign up to our newsletter**

### **Sign up to our newsletter**

![Newsletter icon](https://www.shawcity.co.uk/hubfs/Icons/newsletter-icon.svg)

![Shawcity logo](https://www.shawcity.co.uk/hubfs/Brand%20Logos/NEW%20colour%20logo%2c%2050%20and%20strap.png)

##### Products

- [Accessories](https://products.shawcity.co.uk/collections/accessories)
- [Air Quality Monitoring](https://products.shawcity.co.uk/search?q=air%20quality)
- [Calibration Gas](https://products.shawcity.co.uk/search?q=calibration%20gas)
- [View All Products ⇀](https://www.shawcity.co.uk/products)

##### Industries

- [Agriculture & Biogas](https://www.shawcity.co.uk/agriculture-biogas-gas-detection)
- [Construction](https://www.shawcity.co.uk/construction-gas-monitoring)
- [Environmental Projects](https://www.shawcity.co.uk/environmental-gas-monitoring)
- [View All Industries ⇀](https://www.shawcity.co.uk/industries)

##### Services

- [Training](https://www.shawcity.co.uk/training)
- [Service & Calibration](https://www.shawcity.co.uk/gas-detector-service-calibration-uk)
- [Hire](https://www.shawcity.co.uk/gas-detector-hire-uk)
- [Customer Support](https://www.shawcity.co.uk/customer-support)

##### About

- [About Shawcity](https://www.shawcity.co.uk/about-shawcity)
- [Vacancies](https://www.shawcity.co.uk/shawcity-careers)
- [News](https://www.shawcity.co.uk/news)
- [Events](https://www.shawcity.co.uk/events)

##### Customer Support

- [![Telephone icon](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/phone-icon.svg) 01367 899553](tel:01367%20899553)
- [![Email icon](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/email-icon@1x.svg) info@shawcity.co.uk](mailto:info@shawcity.co.uk)

##### Get in Touch

- [Contact Us](https://www.shawcity.co.uk/contact)
- ![Map pin icon](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/geo-pin-icon.svg)
  
  [Shawcity Limited 91-92 Shrivenham Hundred Business Park, Oxfordshire SN6 8TY](https://goo.gl/maps/CWtffn8UgPAM4Xym9)

- Products 
    - [Portable Gas](https://products.shawcity.co.uk/collections/portable-gas)
    - [Fixed Gas Monitoring](https://www.shawcity.co.uk/fixed-gas)
    - [Ground Gas/Contaminated Land](https://products.shawcity.co.uk/collections/ground-gas-contaminated-land)
    - [Sound Noise & Vibration](https://products.shawcity.co.uk/collections/sound-noise-and-vibration)
    - [Air Quality & Dust](https://products.shawcity.co.uk/collections/air-quality-and-dust)
    - [Fit Testing](https://products.shawcity.co.uk/collections/fit-testing)
    - [Heat Stress](https://products.shawcity.co.uk/collections/heat-stress)
    - [Accessories](https://products.shawcity.co.uk/collections/accessories)
    - [OEM Gas Sensors](https://products.shawcity.co.uk/collections/oem-gas-sensors)
    - [Calibration Gas](https://products.shawcity.co.uk/collections/calibration-gas)
- Services 
    - [Training](https://www.shawcity.co.uk/training)
    - [Service & Calibration](https://www.shawcity.co.uk/gas-detector-service-calibration-uk)
    - [Hire](https://www.shawcity.co.uk/gas-detector-hire-uk)
    - [Customer Support](https://www.shawcity.co.uk/customer-support)
- About Us 
    - [About Shawcity](https://www.shawcity.co.uk/about-shawcity)
    - [Vacancies](https://www.shawcity.co.uk/shawcity-careers)
- Resources 
    - [E-catalogue](https://www.shawcity.co.uk/hubfs/ShawcityE-catalogueWeb21.pdf)
    - [News & Events](https://www.shawcity.co.uk/news)
- Customer Support 
    - [![Telephone icon](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/phone-icon.svg) 01367 899553](tel:01367%20899553)
    - [![Email icon](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/email-icon@1x.svg) info@shawcity.co.uk](mailto:info@shawcity.co.uk)
- Get in Touch 
    - [Contact Us](https://www.shawcity.co.uk/contact)
    - ![Map pin icon](https://cdn.shopify.com/s/files/1/0555/2901/3401/t/2/assets/geo-pin-icon.svg)
      
      [Shawcity Limited 91-92 Shrivenham Hundred Business Park, Oxfordshire SN6 8TY](https://goo.gl/maps/CWtffn8UgPAM4Xym9)

<https://www.linkedin.com/company/shawcity/> <https://www.facebook.com/shawcitylimited/?fref=ts> <https://www.youtube.com/@ShawcityLimitedUK>

![Pass Certified PAT Tester](https://www.shawcity.co.uk/hs-fs/hubfs/Website/Logos/pass-certified-PAT-tester@2x.png?width=89&height=60&name=pass-certified-PAT-tester@2x.png)

![Alcumus Safe Contractor](https://www.shawcity.co.uk/hs-fs/hubfs/Website/Logos/alcumus-safe-contractor@2x.png?width=411&height=73&name=alcumus-safe-contractor@2x.png)

![ISRP Logo Small Websize](https://www.shawcity.co.uk/hs-fs/hubfs/ISRP%20Logo%20Small%20Websize.jpg?width=106&height=50&name=ISRP%20Logo%20Small%20Websize.jpg)

![BOHS 70 YearWEB](https://www.shawcity.co.uk/hs-fs/hubfs/BOHS%2070%20YearWEB.png?width=100&height=73&name=BOHS%2070%20YearWEB.png)

![British Safety Council Member](https://www.shawcity.co.uk/hs-fs/hubfs/Website/Logos/british-safety-council-logo@2x.png?width=117&height=50&name=british-safety-council-logo@2x.png)

![Achilles Procurement](https://www.shawcity.co.uk/hs-fs/hubfs/AchillesLogoWebsiteSize.png?width=73&height=73&name=AchillesLogoWebsiteSize.png)

![ISO credentials 25](https://www.shawcity.co.uk/hs-fs/hubfs/ISO%20credentials%2025.png?width=600&height=296&name=ISO%20credentials%2025.png)

© Shawcity 2021

[Privacy & Cookie Policy](https://www.shawcity.co.uk/privacy-cookies)  |  [Sales Terms & Conditions](https://www.shawcity.co.uk/terms-conditions-sales)  |  [Hire Terms & Conditions](https://www.shawcity.co.uk/hires)  |  [Service Terms & Conditions](https://www.shawcity.co.uk/terms-and-conditions-of-service-calibration)  |  [Carbon Reduction Plan](https://www.shawcity.co.uk/hubfs/QP43%20Carbon%20Reduction%20Plan.pdf) | [Modern Slavery Statement](https://www.shawcity.co.uk/hubfs/Modern%20Slavery%20Statement.pdf)

Company registered in England No. 1273269   |   VAT number: GB 200868972   |   ISO 9001-2015 certified.

© Shawcity 2021

[Privacy & Cookie Policy](https://www.shawcity.co.uk/privacy-cookies)  |  [Sales Terms & Conditions](https://www.shawcity.co.uk/terms-conditions-sales)  |  [Hire Terms & Conditions](https://www.shawcity.co.uk/hires)  |  [Service Terms & Conditions](https://www.shawcity.co.uk/terms-and-conditions-of-service-calibration)  |  [Carbon Reduction Plan](https://www.shawcity.co.uk/hubfs/QP43%20Carbon%20Reduction%20Plan.pdf) | [Modern Slavery Statement](https://www.shawcity.co.uk/hubfs/Modern%20Slavery%20Statement.pdf)

Company registered in England No. 1273269   |   VAT number: GB 200868972   |   ISO 9001-2015 certified.