@AccessSensor profile picture
Access Sensor Tech. @AccessSensor

We develop instruments to help you understand the air and environment. Some amazing successes here: accsensors.com/literature-an…

Joined August 2016
  • Tweets 680
  • Following 566
  • Followers 520
411 Photos and videos
Sometimes data are boring. Like this volumetric flow control data from two pump channels on our HHB. 90 hours of sampling at 2 LPM maintaining flow to within 2% of target. Of course, excellent flow control is needed for accurate PM & VOCs sampling. hubs.li/Q03T5yG-0
18
No one home? Worried about traffic? Home visits and site assessments are challenging. Did you know you can pre-program our tools and mail them to your participants? Contact us to learn more about how we make remote deployments easy and accurate. hubs.li/Q03T5BV60

Access Sensor Technologies: Products

Learn more about our virtually-silent, portable, and easy-to-use air pollution samplers.

accsensors.com
10
Three NYT articles related to the hazards of PM. Your local library may have a digital subscription if you don’t subscribe Wildland Firefighters hubs.li/Q03SRW1f0 Connections to dementia hubs.li/Q03SRRtn0 Finish times connected to air quality hubs.li/Q03SRVyx0

12 Hours in the Smoke

Across the country, wildfire fighters work for weeks at a time in poisonous smoke. The government says they are protected. We tested the air at one fire to find out why they are still dying.

nytimes.com
56
We’ve wrapped up field-testing of our Home Health Box and think it's the easiest, most comprehensive, quietest way to sample indoor air. Fill out this form to order discounted, refurbished HHBs from our study! #AirPollution #IAQ #ParticulateMatter hubs.li/Q03T3Drv0
16
Wow! Do you think people are interested in understanding indoor air quality? Our project with @NIMHD to make gold standard IAQ measurements accessible to people in their homes is taking off.
1
46
Only 1 week left to register for the "Next-Generation Tools for Measuring Exposure to Air Pollution" hosted by the HHEAR a part of NIEHS. hubs.li/Q03gh5zR0

1
32
See you soon at the Air Quality Measurement Methods and Technology Conference in Aurora, CO 4/23 - 4/25 hubs.li/Q03g9SDq0
24
DYK - Our product pages host manuals, firmware and links to the smart phone apps. Some files are hosted on DropBox but it's not necessary to have a Dropbox account to download these files. Click on the link at the bottom of the pop-up. hubs.li/Q034D6tG0
34
Amazing work from our CSU collaborator @ShantanuJathar and co-founder @Smogdr @ColoradoStateU groups. They're out using the patented UPAS air sampling products to gather air pollution information in LA. Products developed with funding from @NIEHS @NIOSH hubs.li/Q034CsWX0

CSU technology measuring LA air quality

Four professors at Colorado State University are collecting data that may help determine air quality impacts from urban wildfires, starting with the L.A. fire.

engr.source.colostate.edu
4
91
Published today! 100's of 24h personal & indoor PM2.5 & PM10 measurements collected at 2 LPM w/ UPAS compared to PMIs Apex2 pumps; Spearman correlation > 0.8, normalized mean difference < 16%. All samples collected in the Central Valley w/ CSU & @CCEJN. hubs.li/Q02ZfnB20

Application and validation of a wearable monitor for assessing time- and location-resolved exposu...

Reliable assessment of personal exposure to air pollution remains a challenge due to the limitations of monitoring technology. Recent technology developments, such as reductions in the size and cos...

tandfonline.com
42
We just released a new version of our astr package for reading UPAS and HHB log files into R! This version won’t throw an error if you try to read an empty sample log; it will just return a data frame with zero rows. Install from GitHub! #Rstats github.com/accsensors/astr

GitHub - accsensors/astr: astr package for R log file analysis

astr package for R log file analysis. Contribute to accsensors/astr development by creating an account on GitHub.

github.com
47
We just posted an updated UPAS v2.1 and v2.1 PLUS User Guide. What's new? 1) An improved explanation of what happens when you start a sample from the app. 2) Advice for preparing the internal Li-ion battery for shipping or long-term storage. Download here: hubs.li/Q02YQ8fD0

UPAS v2.1 PLUS

The UPAS v2.1 PLUS combines a quiet, wearable, easy-to-use particulate matter filter sampler with time-resolved location and pollution sensors.

accsensors.com
1
43
Did you know that you can program the time-resolved PM sensor in the UPAS v2.1 PLUS to operate on a duty cycle so the UPAS can run longer on a single battery charge? Looking for advice on selecting the best setting for your sampling application? Chec... hubs.li/Q02YyqVf0

Choosing the best particulate matter sensor duty cycle for your measurement application

Guidance for UPAS v2.1 PLUS users on selecting the best time-resolved particulate matter sensor duty cycle for a specific air sampling application.

accsensors.com
1
26
How do outdoor PM2.5 concentrations measured using UPAS compare to those measured using U.S. EPA FRMs and FEMs? Very well, actually! See data from a two-week collocation at a regulatory monitoring site in Denver in our latest blog. hubs.li/Q02WPlQC0

UPAS Collocation with Regulatory Monitors

A blog describing PM2.5 and PM10 data collected from Ultrasonic Personal Air Samplers (UPAS) collocated with regulatory PM2.5 and PM10 monitors in Denver.

accsensors.com
33
"Future studies utilizing high-resolution data could improve the accuracy of these measurements. Heterogeneity among different studies also emphasizes the need to standardize methods for measuring PM2.5 exposure and diagnosing asthma." #weagree hubs.ly/Q02Ws8XR0

Long-term air pollution exposure increases asthma risk in children and adults

Researchers review existing evidence on the effects of long-term exposure to air pollution in the form of fine particulate matter on the risk of developing asthma.

news-medical.net
17
Good morning #AAAR2024! We hope you're enjoying the conference! Our Director of Research, @Jess_Tryner, will present at 8:45 this morning in Ballroom A on Personal Exposures to PM2.5 by Microenvironment among Residents of California’s Central Valley. hubs.li/Q02TLkxX0
1
79
If you live in or near Alameda County, check out this link to see if you might be eligible to receive a new induction stove and participate in a study on indoor air quality!
Berkeley Air@BerkeleyAir
24 Oct 2024
The Health-e Communities program is now live! Ava Community Energy is partnering with Berkeley Air to assess indoor air quality for a new gas-to-electric stove swap out program. Qualified applicants will receive a new induction range, free! Learn more here loom.ly/Csl5uXY
34
Another #ISES2024 talk featuring PM2.5 samples collected with our UPAS today (Thurs) at 10:00 in Level 2-Joyce: "The impacts of a coal-to-heat pump heating transition on indoor, outdoor, and personal PM2.5 exposure in 50 rural villages in Beijing, China" hubs.li/Q02TLdHk0
1
68
The day in data #ISES2024 Montreal. Sunrise (LUX sensor, pre-programmed start at 6 am sharp), walk to the conference (GPS, PM2.5, accel, temp), a bit concerning CO2 level at the poster session. Equally pleasant walk home. Ces idées qui vous ont été présentées par UPASv2.1 .
1
62
Sampling PM in challenging dusty environments? Today (Wed 23 Oct) at #ISES2024 from 2:45 to 4:00 PM you can see posters #972 and #973 on the new pre-cyclone impactor retrofit insert for our 1 LPM PM2.5 inlet. hubs.li/Q02TJHdn0
1
47
Load more