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					                       IHBULLETIN

HELPFUL INFORMATION FROM GALSON L ABORATORIES • AIHA ACCREDITED SINCE 1976




         Green Building Council Lowers the LEED Formaldehyde Criteria

             The U.S. Green Building Council                                  cance of change of some the other
         (USGBC), the non-profit organization                                 five LEED categories, the formaldehyde
         behind the LEED (Leadership in Energy                                change is important for Galson
         and Environmental Design) Green                                      Laboratories’ clients to note.
         Building Rating System™, approved a
                                                                                      LEED 2009 is a 110 point certifica-
         new version of standards at its meeting
                                                                              tion system. To claim points for Credit
         in November 2008. You may hear these
                                                                              3.2 in the EQ category, an indoor air
         new standards referred to as “Version
                                                                              quality (IAQ) management plan must
         3” or “LEED 2009”. Among the changes
                                                                              be developed and implemented
         included is a reduction in the
                                                                                                                        before occu-
         formaldehyde concentrations allowed
                                                                                                                        pancy. As part
         during IAQ testing under the LEED
                                                                                                                        of that plan,
         Indoor Environmental Quality (EQ)
                                                                                                                        when a build-
         Credit 3.2.
                                                                                                                        ing is ready,
             The LEED rating system allows                                                                              occupancy
         building projects to score points across                                                                       points can be
         six categories. One of those categories,                                                                       earned in the
         and perhaps the one most significant                                                                           EQ category by
                                  to industrial hygiene                       either performing a “flush-out” or by
                                  air sampling, is for                        IAQ testing.
                                  Indoor Environmental
                                                                                      A flush-out of a building is performed
                                  http://technician.zxq.net
                                   http://technician.zxq.net
                                  Quality (EQ). While
                                                      by supplying specified volumes of
                                  the EQ category did
                                                                              outdoor air per square foot of floor
                                  not see the signifi-
                                                                              space while maintaining internal



                       Now ISO 17025:2005 accredited by A2LA in the chemical, biological and environmental fields of analysis.

                                                                                 www.galsonlabs.com 1(888) 432–LABS (5227)
                                                                                                                                 The Galson Solutions Network
temperatures and relative humidity at             Environmental Protection Agency
specific levels. Along with additional            Compendium of Methods for the
criteria, internal finishes must be               Determination of Air Pollutants in
completed and furniture must be                   Indoor Air.
installed. Flush-outs can be difficult to
                                                       For each sampling point where
perform for several reasons and many
                                                  the maximum concentration limits are
clients often opt for IAQ monitoring.
                                                  exceeded, conduct additional
     The IAQ option involves air testing          flush-out with outside air and retest the
and requires conducting baseline IAQ              specific parameter(s) exceeded to
testing to show that contaminant levels           indicate the requirements are
do not exceed those noted in the                  achieved. Repeat procedure until all
table below.                                      requirements have been met. When
                                                  retesting non-complying building
     Conduct baseline IAQ testing,
                                                  areas, take samples from the same
after construction ends and prior to
                                                  locations as in the first test.
occupancy, using testing protocols
consistent with the United States


             EQ Credit 3.2, Concentrations to Not Be Exceededontaminant
 Contaminant           Maximum Concentration          Comments
 Formaldehyde              50 parts per billion                  27 parts per billion when
                                                                 2009 standard is released
 Particulates (PM 10)      50 micrograms per cubic meter
 Total Volatile Organic    500 micrograms per cubic meter
 Compounds (TVOC)
 4-phenylcyclohexene       6.5 micrograms per cubic meter        Only required if any
 (4-PCH)                                                         carpeting or fabrics with
                                                                 styrene butadiene rubber
                                                                 latex backing material are
                                                                 installed in the building
 Carbon Monoxide           9 parts per million (PPM) & no
 (CO)               http://technician.zxq.net
                           greater than 2 PPM above
                     http://technician.zxq.net
                           outdoor levels
    The air sample testing shall be             least ventilation and greatest
conducted as follows:                           presumed source strength.

1. All measurements shall be conducted       4. Air samples shall be collected
   prior to occupancy, but during               between 3 feet and 6 feet from the
   normal occupied hours, and with the          floor to represent the breathing zone
   building ventilation system starting at      of occupants, and over a minimum
   the normal daily start time and              4-hour period.1
   operated at the minimum outside air
                                                    The following general air sampling
   flow rate for the occupied mode
                                             and analytical procedures are
   throughout the duration of the air
   testing.                                  available for each respective
                                             contaminant, including:
2. The building shall have all interior
   finishes                                  a. Formaldehyde—4-hour samples
   installed,                                   collected on treated sorbent tubes
   including                                    in accordance with Modified NIOSH
   but not                                      2016/ EPA Method TO-16.
   limited to                                b. Particulates—A continuous measure-
   millwork,                                    ment for airborne particulates
   doors, paint,                                (PM10) throughout a 4-hour period
   carpet and                                   using a TSI Sidepak aerosol monitor
   acoustic                                     or equivalent. Alternately, collect air
   tiles.                                       samples for laboratory analysis using
   Non-fixed                                    a PEM sampler designed for PM10
   furnishings such as workstations and         particulate collection, pump and
   partitions are encouraged, but not           filter.
   required, to be in place for the
   testing.                                  c. TVOC—4-hour whole air samples
                                                analyzed in accordance with
3.The number of sampling locations will         Modified OSHA PV2120/Modified
   vary depending upon the size of the          EPA TO-15. Individual compound
   building and number of ventilation                                   identification
   systems. For each portion of the                                     and concen-
   building served by a separate                                        trations
   ventilation system, the number of                                    detected
                  http://technician.zxq.net
   sampling points shall not be less than
                   http://technician.zxq.net                            can also be
   one per 25,000 sq.ft., or for each                                   reported if
   contiguous floor area, whichever is                                  requested.
   larger, and include areas with the        1
                                               U.S. Green Buildings Council, LEED® for New Construction for Ballot Tracked
                                             Changes. Downloaded from the internet, 12/07/2008. URL no longer available.




                                                                                           The Galson Solutions Network
              d. 4-PCH - 4-hour sample collection            relative humidity, etc., dependent
                 with a 1-liter evacuated canister. This     upon the model used.
                 canister can also be used to collect
                                                               The Galson Laboratories industrial
                 the TVOC sample at the same time.
                 Samples will be analyzed in               hygiene laboratory staff has the
                 accordance with Modified EPA              experience and qualifications to assist
                 Method TO-15/OSHA PV2120.                 in defining air testing required during
                                                           implementation of the LEED IAQ
                                                           Management Plan prior to building
                                                           occupancy. For more information
                                                           about air sampling for LEED
                                                           requirements, contact a Galson client
              e. Carbon Monoxide—A continuous              service representative, toll free, at
                 measurement for carbon monoxide           888-432-LABS (5227) or with IHLIVE
                 for a 4-hour period using a direct-       Online Chat at www.galsonlabs.com.
                 reading real-time indoor air quality
                 monitor such as a TSI Q Trak IAQ
                 monitor. The monitor used may
                 simultaneously measure and record
                 other IAQ parameters such as carbon
                 dioxide, average temperature,




                                 http://technician.zxq.net
                                  http://technician.zxq.net




IHB#30A-909                                                                             The Galson Solutions Network

				
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