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Agenda

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Two to three times the expected number of employees with asthma or wheezing ... Persons with post-occupancy asthma continue to have fewer positive skin allergy ... – PowerPoint PPT presentation

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Title: Agenda


1
Agenda
  • Introductions Mary Lou Fleissner, Dr.PH.
  • NIOSH Update Terri Pearce, Ph.D.
  • UConn Update Eileen Storey, M.D.
  • Questions and Answers

2
August 2004 Survey25 Sigourney Street
  • Terri A. Pearce, Ph.D. Project Officer
  • National Institute for Occupational Safety and
    HealthDivision of Respiratory Disease Studies
  • Field Studies Branch
  • Morgantown, West Virginia

3
Questions about 25 Sigourney Street
  • Has health improved?
  • Has the environment improved?
  • What happens next?

4
Overall Summary
  • There is evidence of improvement in symptoms
    reported in the 12 months prior to the 2004
    survey
  • Some occupants of 25 Sigourney Street continue to
    have ongoing respiratory illness
  • Previous water damage is likely to have
    contributed to the health complaints
  • Ongoing health surveys are required to assess the
    effectiveness of dampness remediation

5
NIOSH Investigation
  • Union health hazard evaluation request in
    response to employee reports of
    physician-diagnosed diseases and symptoms
  • Became a joint request when management learned of
    the concerns

6
NIOSH 2001 and 2002 Surveys
  • September 2001 - Health questionnaire survey
    offered to everyone in the building
  • April 2002 Environmental sampling
  • June 2002 Offered medical testing to some
    employees

7
2001 and 2002 Findings
  • Two to three times the expected number of
    employees with asthma or wheezing
  • Persons reporting symptoms or respiratory
    diagnoses frequently had abnormal lung test
    results or asthma medication use
  • Mold and endotoxin levels in dust were associated
    with respiratory and skin symptoms

8
Building Repairs
  • Exterior repairs to correct balcony drainage,
    brick failure, window leaks, roof replaced
  • Interior replacement of water and mold damaged
    sheetrock
  • Interior repairs to bathroom core
  • Replacement of carpeting on some floors
  • Vacuuming of carpets, chairs, and partitions

9
Has the health improved?
10
2004 Post-Repair Survey
  • 7-8 months after roof repair
  • 3-4 months after post-repair cleaning
  • Health Assessment Questionnaires and medical
    testing
  • Building Assessment Dust sampling and real-time
    monitoring

11
Participation
  • 888 people in 2001 and 771 in 2004
  • About 70 for both surveys

2001
2004
12
New Diagnoses from January 2003 to August 2004
  • In employees hired 2003-2004
  • 1 asthma diagnosis
  • In employees hired before 2003
  • 6 asthma diagnoses
  • 1 hypersensitivity pneumonitis diagnosis
  • 1 sarcoidosis diagnosis
  • also diagnosed with asthma

13
Respiratory Illness - 2004
14
One or more symptoms in the last 12 months - 2004
15
One or more symptoms each week for the last 4
weeks - 2004
16
Non-Respiratory Symptoms - 2004In Last 12 months
and 4 Weeks
17
Summary of 2004 questionnaire survey
  • DRS and DSS similar for physician diagnoses and
    respiratory symptoms
  • About half of participants reported lower and
    non-respiratory symptoms and 30 reported skin
    symptoms
  • More upper than lower respiratory symptoms

18
Has the percent of symptomatic employees changed
between the 2001 and 2004 surveys?
  • We compared the results for the 481 employees who
    participated in both surveys

19
Asthma-like symptoms in the last 12 months, but
not in the last 4 weeks
20
Asthma-like symptoms weekly in the last 4 weeks
21
Have you had symptoms that you think may be
related to the building? Comparison between
2001 and 2004 surveys
22
Summary of comparison2001/2002 to 2004
  • There were decreases in the percent of employees
    reporting symptoms in the last 12 months but not
    occurring in the last 4 weeks
  • There were no decreases in the percent of
    employees reporting symptoms occurring weekly in
    the last 4 weeks
  • Decrease for DRS when asked
  • Have you had symptoms that you think may be
    related to the building?

23
Did medical testing results change?
  • Lung function test results show similar
    relationships with symptom status in 2002 and
    2004
  • Positive allergy skin tests have decreased for
    all symptom groups
  • Persons with post-occupancy asthma continue to
    have fewer positive skin allergy tests than
    persons with pre-occupancy asthma

24
Abnormal Lung Function Tests 2002 and 2004
25
Has the environment improved?
26
Median Dust Levels
27
Median Fungi Levels
28
Median Cat Allergen Levels
29
Have the dust levels changed?
  • Amounts of dust in the carpet are somewhat higher
    than measured in 2002
  • Amounts of culturable fungi and endotoxin in
    floor dust are also slightly higher than in 2002
  • Amounts of cat and dog allergen are lower than in
    2002

30
Real-time Monitoring
  • Temperature and relative humidity were within the
    recommended ranges
  • Some carbon dioxide measurements on 15th floor
    were above the recommended level
  • Water activity of some carpets could support
    microbial growth

31
Have we answered the questions?
  • There were decreases in the percent of employees
    reporting symptoms in the last 12 months but not
    occurring in the last 4 weeks
  • There were no decreases in the percent of
    employees reporting symptoms occurring weekly in
    the last 4 weeks
  • Dust levels were similar with fungi and endotoxin
    levels being somewhat higher in carpets with cat
    and dog allergen being somewhat lower

32
What happens next?
33
Next Steps
  • August health and environmental surveys
  • Follow-up for new employees
  • Building systems evaluation

34
Overall Summary
  • There is evidence of improvement in symptoms
    reported in the 12 months prior to the 2004
    survey
  • Some occupants of 25 Sigourney Street continue to
    have ongoing respiratory illness
  • Previous water damage is likely to have
    contributed to the health complaints
  • Ongoing health surveys are required to assess the
    effectiveness of dampness remediation

35
NIOSH - Morgantown
  • 1-800-232-2114
  • Terri Pearce, Ph.D. Project Officer
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