air generally and officially bad since Aug 14, but a few days like today are 'more bad'. right now air quality is 80% toxic: recycle car air, don't hang outside.
and wimpy cloth masks dont do anything for pollution/soot poisons, you want n95% or n99% masks onhand for days/months like these in high fire season, specially if you live within 50 miles of refineries, chemical/energy plants with smokestack flares, like we do in the east bay area.
red flag nights bring fire and power outage risk, so i'd tank up the cars and park them outside overnight because you may not be able to get your garage door open in a midnight emergency (or unlock and escape smart homes).
The World's Leading Provider of Real-Time Air Quality Data
BreezoMeter is the only source for air quality data that enables individuals to make better health decisions based on the air pollution levels at their specific location and individual sensitivities.
BreezoMeter
BreezoMeter
- Accurate down to 5 Meters/0.003 Miles
- Updated Hourly
- Up to 4-day forecast
- Global Coverage
- Actionable Health Recommendations
The World's Most Accurate Air Quality Data
BreezoMeter analyzes data from multiple sources using advanced algorithms and machine learning, then applies a continuous validation process that ensures the highest level of accuracy.
https://breezometer.com/accurate-realtime-air-quality-data
Delivering the World's Most Accurate
Delivering the World's Most Accurate
Air Quality Data
Millions of people rely on accurate air quality insights each day to help them avoid harmful breathing hazards in the environment. Our continuous accuracy process ensures we provide the most reliable real-time air quality information worldwide.
- We continuously test accuracy every hour in 93+ countries.
- Real-time Accuracy
How Else Do We Measure Accuracy?
We've built a cross-validation process into our technology based on the "Leave one out" method: We eliminate one governmental sensor's data from our algorithm on an hourly basis, calculate the result, then compare our output to the actual sensor reading. This process continuously runs behind the scenes of the information we provide, helping to ensure high accuracy and flagging any anomalies early on.
Why We Compare Ourselves to Government Monitoring Stations
Government monitoring stations represent the ground truth for air quality reporting, but only at their exact location. There can often be miles and miles without a monitoring station in sight. Further, the information they provide is reported with a delay of several hours.As air quality varies at the street-level and on an hourly basis, the information they provide doesn't help people manage their personal exposure to air pollution in a practical way. It was never designed for real-time use or actionable decision-making.
Hundreds of Air Quality Calculations at Once
In order to calculate air quality up to a resolution of 0.003 miles (5 meters/16 feet) in 90+ countries on an hourly basis, we pull information from numerous data sources, such as government sensors, traffic patterns, satellite data, active fires, meteorological information and more. We then deploy numerous models at the same time, using more than 30 different algorithms and sophisticated machine learning technology.
In order to calculate air quality up to a resolution of 0.003 miles (5 meters/16 feet) in 90+ countries on an hourly basis, we pull information from numerous data sources, such as government sensors, traffic patterns, satellite data, active fires, meteorological information and more. We then deploy numerous models at the same time, using more than 30 different algorithms and sophisticated machine learning technology.
from Oct 13, 2017 'breezometer AQI forecasts | pollution masks | heat/humidity/wind...' post:
How accurate is BreezoMeter? How do you measure and ensure accuracy?
BreezoMeter uses innovative air quality dispersion models, and strict accuracy analysis and validation methods to guarantee extreme precision. If a location doesn't meet our accuracy standards, we won't provide data for it.
BreezoMeter's accuracy validation is performed regularly using different sample areas. For instance, we use the "leave-one-out" cross-validation method.
In this validation process, we compare the measurements taken by one of our sources ("real"), with our algorithm calculations for the same exact location, leaving the real source out ("calculated"). We then validate our accuracy through statistical analysis tests.
Check this video to understand our technology in 2 minutes, or download the paper by Scientia on our technology.
How does BreezoMeter know the outdoor air quality levels?
Using advanced algorithms and big data infrastructure, BreezoMeter brings air quality data out of obscurity and into the hands of users in a format as simple to access and understand as weather reports.
BreezoMeter's big data analytics determine the dispersion and flow of air pollution from a combination of layered data sets derived from governmental sensors, satellites, weather patterns, transportation dynamics, and other environmental sources.
Tied together with proprietary algorithms, this combination provides users with accurate air quality data, with a precision and granularity up to a city block.
No comments:
Post a Comment