MassDEP Ambient Air Quality Monitoring Network & Annual Plan

Learn about which pollutants and parameters the agency measures at specific monitoring sites, and why.

About the Monitoring Network & Plan

The Massachusetts Department of Environmental Protection (MassDEP) operates a network of 22 ambient air quality monitoring stations at locations across the state. The Wampanoag Tribe of Gay Head (Aquinnah) operates an ozone monitoring station on Martha's Vineyard. Each year, MassDEP is required to submit an Annual Ambient Air Quality Monitoring Network Plan to the U.S. Environmental Protection Agency (EPA). This document and its attachments are subject to a 30-day public comment period before MassDEP submits them to EPA for review and approval.

The annual network plan describes to EPA which pollutants and other parameters MassDEP measures at its various ambient air monitoring sites and why they are measured at those specific locations. It also describes changes in the network - including new and closed locations, and new and discontinued measurements at existing locations - since the last network plan, as well as proposed changes in the network over the next 18 months.

MassDEP also must conduct an assessment of the Massachusetts Ambient Air Quality Monitoring Network every five years to determine whether it meets the objectives defined in EPA regulations.

This page summarizes the annual network plan and five-year network assessment. See the full network plan and attachments, along with instructions for submitting comments.

Air Monitoring Network Map

Zoom in and click on the icons to learn about each monitoring station site across Massachusetts.

Monitoring Sites & Parameters Measured

Monitoring Sites

O
3

C
O

S
O
2

N
O
x

N
O
y

P
b

M
E
T

P
M
10

P
M
2.5

P
A
M
S

T
O
X
I
C
S

B
C

S
P
E
C

I
M
P
R
O
V
E

Aquinnah - Wampanoag Tribal Site

                       

Boston - Kenmore

   

     

 

         

Boston - Harrison Avenue

 

 

Boston - Von Hillern Street

 

 

     

   

   

Brockton - Buckley Playground

             

         

Chelmsford - EPA NERL

                         

Chelmsford - Manning Road

                   

Chicopee - Westover AFB

 

   

 

   

 

Fairhaven - Hastings School

         

             

Fall River - Globe Street

 

         

         

Greenfield - Veterans Field

           

       

Haverhill - Consentino School

         

 

   

 

   

Lynn-Water Treatment Plant

 

   

 

     

Milton - Blue Hill Observatory

   

   

             

North Adams – Holden Street

     

 

 

 

 

     

   

Pittsfield - 78 Center Street

               

         

Pittsfield - Silver Lake Drive

                   

Springfield - Liberty Street

 

       

   

   

Truro - National Seashore

         

           

Uxbridge - Blackstone Heritage

         

             

Ware - Quabbin Summit

 

 

         

Worcester - Airport

         

             

Worcester - Summer Street

 

     

         
LEGEND OF PARAMETER ACRONYMS
O3 Ozone
CO Carbon Monoxide
SO2 Sulfur Dioxide
NOx Nitric Oxide, including Nitrogen Dioxide
NOy Total Reactive Oxides of Nitrogen
Pb Lead
MET Meteorological Parameters
PM10 Particulate Matter (10 microns & smaller)
PM2.5 Fine Particles (2.5 microns & smaller)
PAMS Photochemical Assessment Monitoring Station
TOXICS Toxic Air Pollutants including Carbonyls (Aldehydes), Metals & VOCs
BC Black Carbon
SPEC Speciated Fine Particles
IMPROVE Visibility PM Speciation

Network Plan & Attachments

See Additional Resources below for the Draft 2018 Ambient Air Quality Monitoring Network Plan and attachments, and a link to these documents from previous years.

MassDEP will accept public comments on the Draft 2018 Network Plan and attachments through December 14, 2018, at 5:00 p.m. EST by mail or email to:

Thomas McGrath, Chief
MassDEP Air Assessment Branch
Sen. William X. Wall Experiment Station
37 Shattuck Street
Lawrence, MA 01843-1398

thomas.mcgrath@mass.gov

Additional Resources for Network Plan & Attachments

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