Skip to main content
Skip to secondary menu
Government of Canada navigation bar
Canada.gc.ca
Services
Departments
Français
Environment Canada
Search
Search Website
Site
menu
Explore the Topics
Air
Air Quality
Air Pollution
More about Air
Environmental Emergencies
Who to call
Prevention
More about Environmental Emergencies
Sustainable Development
Environmental Indicators
Federal Sustainable Development Strategy
More about Sustainable Development
Climate Change
Greenhouse Gas Emissions
Greenhouse Gas Regulations
More about Climate Change
Nature
Biodiversity
Migratory Birds
More about Nature
Water
Water Governance and Legislation
Water Management
More about Water
Enforcement
Environmental Enforcement
Wildlife Enforcement
More about Enforcement
Pollution and Waste
Managing Pollution
Managing and Reducing Waste
More about Pollution and Waste
Weather
Weather Forecast
Hazardous Weather
More about Weather
Science and Technology
Environmental Science News
Environmental Science Centres
More about Science and Technology
Acts and Regulations
Acts
Agreements
Permits
Regulations
Canadian Environmental Protection Act (CEPA) Environmental Registry
Species at Risk Public Registry
Acts and Regulations – Main Page
Resources
Publications (A – Z)
Environmental Indicators
Funding
Breadcrumb trail
Home
Climate Change
Climate Research
Climate Research Activities
Greenhouse Gases and Aerosols
Canadian Aerosol Baseline Measurement Program
Data and Trends
long term trends
Long term trends
ICP
Cu
Al
Ca
Zn
Mg
Fe
V
Mn
Pb
IC
Cl-
Br-
NO3-
SO4=
Na+
MSA
Black carbon
Date Modified:
2010-01-12
Secondary menu
Institutional links
The Department
About Environment Canada
Minister of the Environment
Media Room
Resources
Acts & Regulations
Environmental Indicators
Publications
Topics
Air
Climate Change
Enforcement
Environmental Emergencies
Nature
Pollution and Waste
Science and Technology
Sustainable Development
Water
Weather and Meteorology
What You Can Do
Take Action for the Environment
Funding
Site Tools
Subscription Service
Search
Site Map
