Monitoring of Atmospheric Precipitation Chemistry

Regionally representative data from Canada and the U.S. collected using wet-only precipitation collectors including Canadian federal and provincial networks (past and present) and U.S. historical networks (for data not available elsewhere). Data product types include major ions (also known as acid rain), mercury (Hg), and toxic substances such as metals, organic compounds, Polycyclic Aromatic Hydrocarbons (PAH) and Polychlorinated Biphenyls (PCBs).

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 17:31 (UTC)
Created	April 17, 2026, 17:31 (UTC)
contact_person	{}
criticality_level	[]
data_dictionary	[]
geographic_scope	[]
open_canada_collection	primary
open_canada_date_published	2016-08-10 00:00:00
open_canada_keywords	{"fr": ["Air", "qualité de l’air", "surveillance atmosphérique", "gaz atmosphériques", "particules atmosphériques", "chimie des précipitations atmosphériques", "combinaison des gaz et des particules atmosphériques", "réseaux et études", "NAtChem", "Réseau canadien d’échantillonnage des précipitations et de l’air", "RCEPA", "Mercure dans les précipitations", "métaux dans les précipitations", "ions importants", "polluants organiques anthropiques dans les précipitations"], "en": ["Air", "Air Quality", "Atmospheric Monitoring", "NAtChem", "Networks and Studies", "CAPMoN", "GLB", "IADN", "NADP", "MDN", "Mercury in Precipitation", "Metals in Precipitation", "Anthropogenic Organic Pollutants in Precipitation", "Major ions"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr	Surveillance de la chimie des précipitations atmosphériques
update_frequency	as_needed