Privacy Policy

Last updated: August 2026

At PPB to PPM Converter (accessible at www.ppbtoppm.com), we respect your privacy and are committed to transparency. This Privacy Policy details how our website operates, what data is processed, and how your privacy is protected when using our scientific conversion calculators and educational content.

1. Client-Side Calculations (No Data Stored)

All unit conversion tools—including our PPB to PPM Converter, PPM to mg/m³, PPM to mg/L, PPB to Grams, and ng/mg to PPM calculators—run entirely on the client side using your browser's JavaScript engine.

• Numerical values entered into our calculators are processed locally on your device.
• We do not record, transmit, or store your scientific calculation data on our servers.
• No account creation or login is required to use any tool on this website.

2. Browser Storage & Cookies

We use minimal browser storage strictly to enhance usability and preserve your interface preferences:

• Theme Preference (localStorage): Remembers whether you selected Light or Dark mode.
• Cookie Consent (localStorage): Remembers that you acknowledged our cookie and privacy notice to avoid repeated popups.
• Calculator State (sessionStorage): Temporarily holds active values during your browsing session.

For a complete breakdown of storage keys, durations, and categories, please visit our dedicated Cookies Policy.

3. Google AdSense & Third-Party Advertising

We may display advertisements served by Google AdSense and third-party ad networks to fund the free availability of our calculation suite. To comply with Google advertising policies:

• Third-party vendors, including Google, use cookies (such as the DoubleClick cookie) to serve ads based on a user's prior visits to this website or other sites on the internet.
• Google's use of advertising cookies enables it and its partners to serve personalized ads based on your visit to PPB to PPM Converter and other websites.
• You can opt out of personalized advertising at any time by visiting Google Ads Settings.
• Alternatively, you can opt out of third-party vendor cookies for personalized advertising by visiting aboutads.info.

4. Server Log Files

Like most standard websites, our hosting infrastructure automatically records non-personally identifiable log files. These logs may include:

• Internet Protocol (IP) addresses (anonymized/truncated where standard)
• Browser type and version
• Referring and exit pages
• Date and time stamps

This data is used solely for network security, DDoS mitigation, server performance monitoring, and operational stability.

5. Contact Form Submissions

If you voluntarily contact us via our Contact Form or direct email, we collect your name, email address, and message solely to reply to your inquiry. We do not sell, rent, or share your contact information with third-party marketers.

6. External Links

Our articles and tools may reference authoritative external sources, such as EPA standards, WHO guidelines, and IUPAC publications. We are not responsible for the privacy practices or content of third-party websites. We encourage you to review their individual privacy policies.

7. Children's Privacy

PPB to PPM Converter is a general audience educational and computational resource. We do not knowingly collect personally identifiable information from children under the age of 13.

8. Your Data Rights

Depending on your location (including the EU/EEA under GDPR and California under CCPA/CPRA), you have rights regarding your personal data, including the right to request access, correction, or deletion of communications you have sent us. You may exercise these rights at any time by contacting us.

9. Changes to This Policy

We may update this Privacy Policy periodically to reflect technological, legal, or operational updates. Changes will be posted directly to this page with a revised "Last updated" date.

10. Contact Us

If you have questions, feedback, or privacy-related requests, please contact us at:

Email: contact@ppbtoppm.com
Contact Page: Online Support Form