VOCs are ubiquitous in the environment, serving many vital roles as fuels, solvents, cleaners, feedstocks and sterilants. Some of these chemicals are also harmful, leading to eye, nose and throat irritation; loss of coordination; and even liver, kidney and central nervous system damage with long term exposure. This is why monitoring is so important.

What is the difference between a VOC sensor and a co2 sensor?

Voc sensor are able to achieve impressive sensitivities and very low detection limits, but a range of factors affect sensor performance. These factors include sensor drift, sensor cross-sensitivity to other gases and a range of environmental conditions. In addition, the complexity of ambient VOC concentrations and mixtures means quantification is a significant challenge for these sensors compared to gas-phase or criteria pollutants.

Temperature and humidity are two of the key environmental factors that impact voc sensor performance. Humidity is particularly important because it can interfere with the interaction between the VOCs and the sensor material, leading to lower sensitivity and slower response times. To address this, VOC sensors often incorporate temperature and humidity compensation mechanisms to improve their accuracy.

During the FRAPPE-DISCOVER-AQ campaign, our team deployed two low-cost sensor systems at the Platteville Atmospheric Observatory (PAO) in Colorado. These sensor systems were co-located with a proton transfer reaction quadrupole mass spectrometer, providing speciated VOC data. Located to the northeast of a city, with proximity to oil and gas operations, this site offered a unique opportunity to test these sensors in dynamic environmental conditions.

Fast & Accurate Email Validation

The best Fast & Accurate Email Validation tools have an accuracy rate of 98%+ and can be used to clean up your email lists by removing invalid addresses. Some of these solutions also offer other features such as identifying catch-all addresses, disposable email address detection, anti-greylisting, and verifying MX records. They provide a simple interface that makes it easy to use, and they can be integrated with your ESP or CRM.

Instant Email Address Verification Online

Unlike email validation, which checks syntax and format, email verification goes beyond that by checking whether the email is active and can receive messages. It helps reduce bounce rates and improves deliverability by reducing spam traps, non-existent or invalid emails. This type of software can also help identify and remove duplicate email addresses, which saves you money.

This tool is a favorite among users because of its reliability and speed. Its fast processing time means you can get your list verified in minutes. It is also very affordable, with prices starting at only $2 for verifying 1000 emails. It is a great option for those with a tight budget who want to increase their email deliverability rate and boost engagement rates. In addition to the email validation, this solution offers other services such as data enrichment and a real-time API, making it an ideal choice for digital marketers. It is compatible with most ESPs and CRMs and has more than 100 integrations. It also includes a free trial where you can verify 250 emails.

How to Block Duplicate Account Fraud

Block duplicate account fraud

Block duplicate account fraud it easy for bad actors to abuse digital marketplaces, causing a lot of headache and cost for online companies. These abusive behaviors include spam, scams, phishing, harassment, engagement manipulation, impersonation, ban evasion, and even fraud.

Why duplicate accounts happen:

Some users may have legitimate reasons for creating a second account on a platform, such as having to replace an account they forgot or lost access to, separating their personal and professional personas, or if they want to maintain different user profiles. However, other bad actors create duplicate accounts for malicious purposes, such as distributing spam or spreading fraudulent reviews and information about a product or service.

Blocking Duplicate Account Fraud: Strategies for Preventing Fraudulent Activities on Your Platform

New and old accounts are a good indication of whether an account is suspicious. For example, if an account is new and doesn’t have a lot of followers or activity, it may be a duplicate.

Fake biography: If a profile has a fake biography or lacks any verification badge, it’s a sign that the account isn’t authentic.

Unusual behavior and activity during account sign up:

When you see a high volume of new accounts being created in the same city or country, this can be a sign of account creation fraud. Similarly, if you see a high number of accounts being created using the same IP address, this can be another indicator. Moreover, multiple accounts that are created from the same IP address can indicate the use of bots or other tools to create duplicate accounts.