NADP News

PFAS NTN-subnetwork, (PFN) “Puffin” Pilot Network

The NADP now offers measurements of per- and polyfluoroalkyl substances (PFAS) in precipitation? The new PFN “puffin” pilot network was established on Jan. 1 2024 after several years of method […] View

New Data Request Form

NADP is launching a new Data Request Form for requesting custom reports from NADP. Custom reports may involve chemistry or precipitation data not currently provided by the web pages, or […] View

Updates to Precipitation and Sample Data

Precipitation Data Adjustments In the past year, NADP has been making updates to how the electronic precipitation gauges are configured. Previously, almost all gauges were set to report precipitation data […] View

Change Logs Published

NADP has released a change log which documents when published data has been updated. The change log can be found in either the NTN or MDN network page under the […] View

AQAW 2024

Air Quality Awareness Week 2024 This year Air Quality Awareness Week will be celebrated May 6-10, 2024.  The purpose of Air Quality Awareness Week is to bring attention to air […] View

New NTN Sample ID# Format

In a continued effort to make more aspects of all NADP networks consistent, we updated the format of NTN sample ID numbers. Starting tomorrow, 3/1/2024, new NTN sample ID numbers […] View

NTN Aggregated Conductance Errors (2021 and 2022)

In November 2023, an error was discovered in the script used to calculate the monthly, seasonal, annual, and water year PWM values for conductance. The script was incorrectly multiplying the […] View

MDN Bottle Contamination and Affected Samples

In mid-November 2022, a contamination issue was discovered with the MDN sample collection bottles that had been in circulation since the end of August 2022. Once identified, the lab immediately […] View

AQAW 2023

Air Quality Awareness Week 2023 This year Air Quality Awareness Week will be celebrated May 1-5, 2023.  The purpose of Air Quality Awareness Week is to bring attention to air […] View

MDN Bottle Contamination Issue

In mid-November 2022, a contamination issue was discovered with the MDN sample collection bottles that had been in circulation since the end of August 2022. Once identified, the lab immediately […] View