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  • HOME
  • TABLE OF CONTENTS
  • INTRODUCTION
  • SURVEY
    • DEMOGRAPHICS
      • AGE
      • EDUCATION
      • EMPLOYMENT
      • HOUSING TYPE
      • INCOME
      • NEIGHBORHOOD
      • SEX
      • RACE
      • RESIDENCY
    • PERCEPTIONS
      • SOUND SENSITIVITY
      • DETERMINANTS OF ANNOYANCE
      • TEMPORALITY
      • PERCEPTIONS BY NEIGHBORHOOD
      • WORKPLACE PERCEPTION
    • NOISE COMPLAINTS
      • TEMPORALITY OVERALL
      • TIME OF DAY
      • DAY OF WEEK
      • MONTH
      • TEMPORALITY BY TYPE OF COMPLAINT
      • TIME OF DAY
      • DAY OF WEEK
      • MONTH
      • NEIGHBORHOOD
      • TIME OF DAY
      • DAY OF WEEK
      • TYPE
    • HEALTH IMPACTS
      • PHYSICAL
      • MENTAL HEALTH
      • SLEEP & RELAXATION
    • NOISE ABATEMENT
    • ADVOCACY STRATEGIES
  • SOUND MAPPING
    • SOUND LEVEL MAPS
      • A-WEIGHTED SOUND LEVELS (dBA)
      • DAY
      • NIGHT
      • UNWEIGHTED SOUND LEVELS (dB)
      • DAY
      • NIGHT
      • UNWEIGHTED – A – WEIGHTED SOUND
      • DAY
      • NIGHT
    • SOUND PERCEPTION MAPS
      • AIRCRAFT ANNOYANCE LEVELS
      • HORNS ANNOYANCE LEVELS
      • LEAF BLOWER ANNOYANCE LEVELS
      • NEIGHBORHOOD SOUND ANNOYANCE LEVELS
      • NOISE COMPLAINT HEAT MAP
      • SOUND SENSITIVITY
      • ROAD TRAFFIC ANNOYANCE LEVELS
      • STREET ANNOYANCE LEVELS
      • TRAIN ANNOYANCE LEVELS
    • HEALTH OUTCOMES MAPS
      • SELF-REPORTED
      • OVERALL HEALTH STATUS
      • HOURS OF SLEEP
  • SOUNDSCAPES
    • COMMUNITY SOUND PORTRAITS
    • URBAN SOUND BITES
  • REPORT CARD
    • GRADING METHODOLOGY
    • REPORT CARDS LIST
  • ABOUT
    • OUR METHODOLOGY
    • OUR THANKS
    • OUR Q & A
    • OUR FUN FACTS
    • OUR COMMUNITY COMMENTS
    • OUR 2020 SURVEY
    • OUR EMAIL
    • OUR TEAM
    • OUR PRESS KIT
    • OUR MAIN WEBSITE
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A-weighted Sound Levels (dBA)

Day

Night

Unweighted Sound Levels (dB)

Day

Night

Unweighted – A-weighted Sound

Day

Night

Visit our Noise and the City‘s main website, click HERE. 

A-weighted Sound Levels (dBA): DAY

A-weighted sound is the most typically used sound metric. This weighting system emphasizes the sound frequency ranges the ears are most sensitive to. In the map presented here, the lighter areas correspond to quieter areas while the darker levels correspond to louder areas.
In context, existing epidemiological studies suggest that negative health impacts resulting from noise exposure can occur at levels as low as 40 dBA (mood and sleep interference) with the most deleterious health effects occurring with exposures starting at 65 dBA (cardiovascular disorders such as hypertension). Further, according to the World Health Organization, recommended daytime sound levels should not exceed 55 dBA. In areas near schools, for example, should be no higher than 35 decibels. Anecdotally, we have never measured decibel levels lower than 35 dBA. We see here that there are several areas within the city that are well above levels shown to cause harm—especially those living near very busy roads.

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THE 2016 GREATER BOSTON NOISE REPORT BY WWW.NOISEANDTHECITY.ORG I   ERICA WALKER  I  JULIO CÉSAR ROMÁN  I  MARCOS LUNA

INTRODUCTION


INTRODUCTION


SURVEY


DEMOGRAPHICS


PERCEPTIONS


NOISE COMPLAINTS


HEALTH IMPACTS


NOISE ABATEMENT


ADVOCACY STRATEGIES


SOUND MAPPING 


SOUND LEVEL MAPS


SOUND PERCEPTIONS


HEALTH OUTCOME MAPS


SOUNDSCAPES


COMMUNITY SOUND BITES


URBAN SOUND BITES


REPORT CARDS


GRADING METHODOLOGY


REPORT CARD LIST


ABOUT


OUR METHODOLOGY


OUR THANKS


OUR Q & A


OUR FUN FACTS


OUR COMMUNITY COMMENTS


OUR 2020 SURVEY


OUR EMAIL


OUR TEAM


OUR PRESS KIT


OUR TABLE OF CONTENTS


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