# CAMEO Chemicals

> Offline hazardous chemical database with response recommendations and hazard prediction. (iPhone/iPad app by National Oceanic and Atmospheric Administration.)

- Source: https://appshunter.io/ios/app/cameo-chemicals/id1151912682 (this page in markdown: same URL + `.md`)
- Developer: [National Oceanic and Atmospheric Administration](https://appshunter.io/developer/583383075)
- Category: Reference, Utilities
- Price: Free
- Rating: 4.20/5 from 26 App Store ratings · 7 written reviews indexed
- Age rating: 12+
- Requires: iOS 11.0 · 307 MB
- Languages: American English
- Released: 2017-04-04
- Data updated: 2026-08-20
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cameo-chemicals/id1151912682/reviews.md

## What is CAMEO Chemicals?

CAMEO Chemicals is a database of hazardous chemical datasheets that emergency responders and planners can use to get response recommendations and predict hazards (such as explosions or toxic fumes). This app runs offline.

Key Program Features:

* Search by name, CAS number, or UN/NA number to find chemicals of interest in the extensive database of thousands of hazardous substances. Includes "type ahead" feature for simplified chemical name searches. An advanced search with additional search criteria is also available.

* Review chemical datasheets for physical properties; health hazards; information about air and water hazards; recommendations for firefighting, first aid, and spill response; and regulatory information. 

* Get information from additional sources using the U.S. Coast Guard CHRIS manual, the NIOSH Pocket Guide, and International Chemical Safety Cards links on many chemical datasheets.

* Access UN/NA datasheets for response information from the Emergency Response Guidebook (ERG) and shipping information from the Hazardous Materials Table. ERG Response Guide PDFs are available in English, Spanish, and French. Additionally, if the datasheets have ERG initial isolation and protective action distance tables, you can now see those values displayed on a map.

* Predict potential hazards that could arise if chemicals were to mix.

* Get offline access: the app runs without an internet connection. You can search for chemical and UN/NA datasheets, view ERG Response Guide PDFs and U.S. Coast Guard CHRIS PDFs, create MyChemicals collections, and view reactivity predictions--all while you're offline. When you're online, you can also go to additional resources on external websites (such as the NIOSH Pocket Guides and the International Chemical Safety Cards) from the app.

CAMEO Chemicals is developed jointly by the National Oceanic and Atmospheric Administration (NOAA) Office of Response and Restoration in partnership with the Environmental Protection Agency (EPA) Office of Emergency Management. It is one of the core programs of the CAMEO software suite (https://response.restoration.noaa.gov/cameo).

## Key features

- Search by name, CAS, or UN/NA number
- Detailed chemical datasheets
- Offline access to all data
- Hazard prediction for chemical mixtures
- Integration with external resources
- ERG and CHRIS manual data

## Recent user reviews (7 of 7)

All indexed reviews: https://appshunter.io/ios/app/cameo-chemicals/id1151912682/reviews.md

### 5/5 — Best app ever

*2022-09-05*

Life saving, i just ask UN numbers and all the information there What we hauling, or is it safe for us.

### 3/5 — Great, when works

*2022-02-08*

This is a great app but have noticed in the last year or so that it doesn’t always work. It won’t open past the first screen with USEPA/NOAA emblems. WISER and NIOSH pocket guide are good substitutes.

### 1/5 — Does not Work

*2021-07-19*

The app no longer loads on my iPhone. I have the latest version and running iOS ver 14.7.

### 5/5 — Outstanding

*2018-07-15*

All of your reference guides are easily accessible from this one platform.

### 5/5 — Great Resource...

*2018-07-11*

I have been using this program for many years as a planning and response resource and it just keeps getting better. Having the app on my phone makes it even more convenient and useful.

### 5/5 — Best source of ChemHazards ever!

*2017-05-09*

Excellent and easy to use!

### 5/5 — Pkdurham

*2017-04-05*

It's finally here. Thanks Guys. Every now and then someone actually makes an app that is worthwhile. It will probably save lots of lives.

## Frequently asked questions about CAMEO Chemicals

### What is CAMEO Chemicals?

CAMEO Chemicals is a free, offline database of hazardous chemical datasheets. It provides emergency responders and planners with response recommendations and hazard predictions, such as potential explosions or toxic fumes.

### Can I use CAMEO Chemicals without an internet connection?

Yes, CAMEO Chemicals is designed to run offline. You can search for chemical datasheets, view PDFs, create collections, and view reactivity predictions without an internet connection.

### What kind of information is available on the chemical datasheets?

Datasheets include physical properties, health hazards, air and water hazards, recommendations for firefighting, first aid, and spill response, as well as regulatory information.

### Does CAMEO Chemicals have ads?

No, CAMEO Chemicals is ad-free. As a free application developed jointly by NOAA and the EPA, it does not contain advertisements.

### What devices is CAMEO Chemicals available on?

CAMEO Chemicals is available on iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is CAMEO Chemicals updated?

The latest version, 3.1.0, was updated on May 31, 2024. Updates typically include new data, features, and bug fixes to ensure the database remains current and reliable.

### What is the age rating for CAMEO Chemicals?

CAMEO Chemicals has an age rating of 12+. This indicates it is suitable for users aged 12 and older, providing access to technical chemical safety information.

### Where can I find more information about the CAMEO software suite?

CAMEO Chemicals is part of a larger software suite. More information about the suite and its other programs can be found at https://response.restoration.noaa.gov/cameo.

## Version history (last 5 releases)

### 3.1.0 — 2024-05-31

* Updated to the newly released 2024 Emergency Response Guidebook (ERG) data, including the ERG response guide PDFs in English, French, and Spanish.
* Added an address search feature to the mapping tool that plots initial isolation and protective action distances from the ERG. The map can be accessed from any UN/NA datasheet that has the ERG Table 1 (or Table 3) values from the green section.
* Updated data from several additional sources, including EPA regulatory data, NIOSH Pocket Guides, DuPont suit fabric breakthrough times, Hazmat Table (49 CFR 172.101) shipping data, International Chemical Safety Cards, and toxic Levels of Concern.
* Revised help topics.
* Made additional minor changes and bug fixes.

### 3.0.1 — 2023-12-14

* For only Vapor Density values that are number ranges, removed additional short phrases (chemical will likely sink/rise in air).

* For only Specific Gravity values that are number ranges, removed additional short phrases (chemical will likely sink/float in fresh water).

* Range values had a bug where in some cases they were not displaying the right short phrase. The phrases have been removed, but the values themselves are still shown.

### 3.0.0 — 2023-10-13

* Added a new mapping tool to plot initial isolation and protective action distances from the Emergency Response Guidebook (ERG). The map can be accessed from any UN/NA datasheet that has the ERG Table 1 (or Table 3) values from the green section.
* Included functionality to allow the mapping tool to export objects to a KML file that can be viewed in other mapping programs, including MARPLOT.
* Enhanced the Vapor Density and Specific Gravity fields with short phrases to say if the chemical will likely sink/rise in air or sink/float in fresh water (respectively).
* Updated data from several sources, including EPA regulatory data, NIOSH Pocket Guides, DuPont suit fabric breakthrough times, and toxic Levels of Concern.
* Added compatibility improvements for newer operating systems.
* Revised help topics.
* Made additional minor changes and bug fixes.

### 2.8.0 — 2022-04-15

- Updated to the 2020 Emergency Response Guidebook (ERG) data.
- Updated regulatory data from EPA and OSHA.
- Updated shipping data from the Hazmat Table, as well as Hazard Labels from the Dept. of Transportation.
- Updated data from several other sources, including NIOSH Pocket Guides, DuPont TyChem suit fabric breakthrough times, and toxic Levels of Concern.
- Revised the help topics.
- Made additional minor changes and bug fixes.

### 2.7.1 — 2018-07-10

This app has been updated by Apple to display the Apple Watch app icon.

- Added advanced search (more search fields, additional operators, and ability to search multiple fields)
- Added option to import MyChemicals text files
- Added datasheet view history feature
- Added support for multitasking on tablets
- Improved app menu
- Updated privacy policy
- Included OSHA Process Safety Management levels in regulatory section
- Updated chemical database to version 2.7.1
- Made bug fixes and interface improvements

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*