Resource Library

Picarro Spotlight on Research that Matters

Picarro Spotlight: Isotopic Carbon Measurements Help Constrain the Source of Large Arctic Methane Emissions from Groundwater Springs

May 19, 2026

Blog

Arctic glaciers are retreating rapidly, and research published in Nature Geoscience featuring result from Picarro's G2201-i reveals that this retreat is unlocking a surprisingly large and previously overlooked source of methane.

Picarro Spotlight on Research that Matters (Green)

Picarro Spotlight: Exposing Overlooked Carbon Pathways in Tropical Peatland Plantations

April 20, 2026

Blog

Discover how carbon stable isotope measurements of CH4 and CO2 from the G2201-i revealed “hidden” carbon hotspots in tropical peatland plantations

Picarro Spotlight on Research that Matters (Blue)

Picarro Spotlight: When Dry Soils Surprise — Isotopes Reveal Hidden N₂O Pathways in Drought and Rewetting

March 31, 2026

Blog

The conventional view holds that drying soils favor aerobic nitrification while suppressing denitrification, with rainfall triggering short-lived N₂O emission pulses. However, Dr. Eliza Harris and collaborators found this assumption is incorrect, with implications that materially affect global climate projections.

PI2124 VHP Analyzer and Pharmaceutical Manufacturing Isolator

Picarro Launches PI2124 Hydrogen Peroxide Analyzer to Improve VHP Monitoring in Pharmaceutical Manufacturing

March 17, 2026

Press Release

Software enhancements strengthen compliance support with better traceability, audit readiness, and operational efficiency

Download

Picarro PI2124 brochure

March 10, 2026

Brochure

Ensure Ultra-Low Residual Hydrogen Peroxide Levels for GMP Pharmaceutical Production with the Picarro PI2124 Gas Concentration Analyzer

Download

PI2124 Analyzer Datasheet

March 9, 2026

Data Sheet

Download

PI2124 Analyzer User Manual (H₂O₂)

February 24, 2026

User Manual

This manual provides an overview, safety, packing contents, hardware setup, operation, GUI functions, file and user management, Modbus, troubleshooting, validation, maintenance, storage, status messages, communication, analog output, data file viewer, exhaust flow, valve sequencer, remote access, Linux commands, relative humidity, and introduction to CRDS.

Picarro Spotlight: Precise NH₃ Data Key to Effective Agricultural Emissions Mitigation Strategies

February 20, 2026

Blog

By combining optimized field flux chambers with high-precision CRDS measurements from Picarro’s G/PI2103 analyzer, Aarhus University researchers captured real-time ammonia emissions during full-scale slurry application, revealing how application techniques and digestate properties directly influence emission outcomes.

From Snapshots to Stewardship: Why Real-Time Emissions Insight Is Now Essential

February 6, 2026

Blog

For decades, emissions programs relied on periodic inspections and time-averaged data that provided compliance—but not control. Real emissions are driven by short, high-impact events that traditional monitoring cannot pinpoint in time. This blog examines how advances in continuous, real-time measurement and analytics now enable system-wide visibility, precise event detection, and faster root cause analysis—shifting emissions management from reactive documentation to predictive, risk-informed operational control.

PI2124 Gas Concentration Analyzer

January 29, 2026

Product

The Picarro PI2114 gas concentration analyzer measures hydrogen peroxide (H2O2) levels as low as 3 ppb to help avoid oxidation and safeguard drug stability.

Picarro Appoints Haavard Oestensen Chief Commercial and Product Officer to Lead Market-Focused Growth and Launch of Fenceline Solution

January 25, 2026

Press Release

SANTA CLARA, Calif. — January 26, 2026 — Picarro, Inc., a global leader in real-time emissions monitoring and advanced gas analysis solutions, today announced the appointment of Haavard Oestensen as Chief Commercial and Product Officer.

Download

Picarro Fenceline Solution Brief Brochure

January 23, 2026

Brochure

The Picarro Fenceline Solution is an end-to-end, real-time monitoring and compliance system that combines continuous fenceline measurements, mobile source detection, and cloud-based analytics to deliver faster detection, precise source attribution, and automated regulatory reporting. By replacing delayed, labor-intensive methods with high-frequency, defensible data and a unified workflow, it reduces operational burden, lowers compliance costs, and strengthens regulatory confidence while enabling facilities to act on emissions issues immediately.

Picarro Spotlight: Tracing Arctic Freshwater from Alaska to Baffin Bay

January 15, 2026

Blog

The Arctic Ocean is freshening fast — but where that freshwater comes from, how it mixes, and where it goes next are surprisingly hard questions to answer. Two new companion studies help change that.

Download

HON Rule Summary

January 12, 2026

Flyer

The Hazardous Organic NESHAP (HON) Rule requires chemical manufacturing facilities to implement fenceline monitoring programs to ensure hazardous air pollutants remain below EPA action levels. With compliance deadlines beginning in July 2026, facilities must monitor six regulated hazardous air pollutants (HAPs), respond quickly to exceedances, maintain detailed records, and conduct quarterly reporting. This document outlines the regulatory requirements and explains how real-time monitoring and automated workflows can replace delayed passive methods with faster, more defensible compliance.

Download

Fenceline Monitoring: Regulatory Drivers and Picarro’s Solution

January 12, 2026

Application Note

Recent updates to U.S. EPA NESHAP regulations have made fenceline monitoring a core compliance requirement for many chemical manufacturing and refinery facilities. Facilities must now track hazardous air pollutants at their site boundaries, respond quickly to exceedances, and maintain detailed records and quarterly reporting. This application note outlines the regulatory drivers behind these requirements and explains how continuous, real-time monitoring and integrated cloud workflows can replace delayed passive methods with faster detection, reliable source attribution, and more defensible

Download

Active vs. Passive Fenceline Monitoring for Compliance: A Practical Comparison

January 12, 2026

Application Note

Meeting today’s fenceline monitoring requirements under the HON, RSR, and CMAS rules requires more than periodic sampling—it requires timely insight, rapid source identification, and efficient compliance workflows. This application note compares active and passive fenceline monitoring approaches, highlighting differences in data frequency, detection speed, operational burden, and long-term cost. It outlines how real-time active monitoring can support faster response, improved compliance confidence, and greater operational efficiency compared to traditional passive methods.

Download

Fenceline Monitoring System Datasheet

January 12, 2026

Data Sheet

Picarro’s Fenceline Monitoring System (FMS) is a fixed, perimeter-based monitoring system designed to deliver continuous, high-sensitivity measurements of hazardous air pollutants at industrial facility boundaries. Built on proven Cavity Ring-Down Spectroscopy (CRDS) technology, the system provides accurate, defensible data that supports regulatory compliance under the HON, RSR, and CMAS rules. When combined with Picarro’s cloud platform, mobile monitoring units, and expert services, the FMS forms the foundation of an integrated fenceline monitoring solution.

Picarro Fenceline Monitoring Solutions

January 12, 2026

Video

See how Picarro’s integrated fenceline approach combines real-time monitoring, mobile detection, and automated workflows to support continuous visibility and confident compliance.

Picarro Sets New Standard in Fenceline Monitoring for Hazardous Air Pollutants

January 9, 2026

Press Release

Comprehensive Solution Delivers Real-Time, Defensible Measurements, Transforming Fenceline Monitoring into a Proactive Compliance and Risk Management Tool

Download

AN042: Nitrous Oxide Isotopic Measurements of Discrete Gas Samples Using Sage Gas Autosampler and Picarro PI5131-i Analyzer

November 26, 2025

Application Note

The Picarro PI5131-i N2O Isotopic Analyzer provides continuous, high-precision measurements of nitrous oxide (N2O) mole fractions, as well as its δ15Nα, δ15Nβ, δ15N and δ18O isotopic compositions. To meet the growing demand for discrete sample analysis, Picarro has developed the Sage gas autosampler.

Picarro certified for ISO 27001:2022, ISO 27017, and ISO 27018, and completed SOC 2 Examination

Picarro Achieves ISO/IEC 27001:2022, 27017, and 27018 Certifications and Successfully Completes SOC 2 Type 2 Examination

November 10, 2025

Press Release

Picarro announced that it has been certified for ISO 27001:2022 (Information Security Management Systems), ISO 27017 (Cloud Security), and ISO 27018 (Data Privacy), and successfully completed its Service Organization Controls 2 (SOC 2) Type 2 examination.

Download

Site Preparation Guide: G2201-i / G2508 Analyzer with A0702 Low Leak Diaphragm Pump and A0310 Recirculation Package

November 5, 2025

Guide

Netz Niederösterreich and Picarro Successfully Complete Large-Scale Methane Emissions Inspection Project Under New EU Regulation

November 3, 2025

Press Release

Picarro Inc., in collaboration with Netz Niederösterreich (Netz NÖ), has successfully completed a large-scale, short-timeline methane emissions inspection project in response to the newly enforced EU Methane Regulation.

Picarro Spotlight: Hidden Heat Beneath the Ice — Isotope Measurements Reveal Cause of Melting Glacier

October 30, 2025

Blog

In a landmark study from the Wadia Institute of Himalayan Geology, scientists uncovered a hidden geothermal spring beneath the Changmolung Glacier in India’s Karakoram range — the first evidence of geothermal heat driving glacier retreat in the region. Using Picarro’s L2140-i isotopic water analyzer, the team traced unique δ¹⁸O and δ²H signatures that confirmed a deep hydrothermal origin for the meltwater. Their findings reveal that subsurface heat, not climate alone, is reshaping glacier dynamics — challenging the long-standing “Karakoram Anomaly” and raising a new question: how many