Presentation on theme: "Designated Person Indoor Air Quality Training Program"— Presentation transcript:
1 Designated Person Indoor Air Quality Training Program Public Employees Occupational Safety and Health (PEOSH) Program
2 Purpose of Designated Person Training Discuss role and responsibilitiesUnderstand basic IAQ terminologyExplain a basic HVAC systemReview PEOSH IAQ standardDiscuss how to recognize and solve basic IAQ problemsDiscuss necessary steps to respond to employee’s complaintsWhen and how to obtain assistanceThe Designated Person training is designed to assist the Designated Person with the necessary skills to comply with the requirements set forth in the NJ Indoor Air Quality Standard, N.J.A.C. 12: The IAQ Standard requires public employers to: (1) take certain actions to prevent or control indoor contaminants, (2) implement procedures to minimize the infiltration of pollutants during renovation and construction, and (3) address employees’ complaints regarding the IAQ.
3 Recommended Skills and Authority of Designated Person Knowledgeable about NJ IAQ StandardFamiliar with basic issues regarding IAQWorking knowledge of air handling systemBe in a position of authorityEffectively communicate with management, staff, maintenance, contractorsGood problem solverAvailableExamples: Head of Maintenance, H&S professional, B&G Director. Lower level personnel may not have adequate authority. Can be a consultant. Admin must contact consultant.
4 Role of the Designated Person Coordinate IAQ ActivitiesPrepare Written IAQ ProgramEstablish and follow preventive maintenance proceduresTrack unscheduled maintenanceEstablish control measures for pollutantsRenovation and constructionSpecific facility operationsMaintenance activitiesRecordkeepingAnnual Written IAQ Program ReviewThe primary role for the Designated Person is to serve as point person for coordinating the activities of monitoring and assessing employee activities and any workplace processes that may affect the quality of the indoor environment. The Designated Person may function only as the coordinator of events and activities, or may be responsible for both coordinating and implementing mitigating activities to solve IAQ problems. The type, size, and complexity of the facility and its air handling system, and the expertise of the Designated Person will determine his/her specific role.
5 Management of IAQ A Coordinated Effort Basic structure of management
6 Management of IAQ A Coordinated Effort Situations can be complex.
7 IAQ Basics Problems occur in many types of buildings Problems reflect both comfort and health related issuesPrimary sources of IAQ problems include:VentilationContaminants generated indoorsInfiltration of outdoor contaminantsUnidentified sourcesProblems occur in new and old buildings. Off gassing of materials in new. Malfunctioning systems in older.Comfort issues (temp), health issues (respiratory symptoms)Inadequately ventilated storage closets.Outdoor contaminants: natural and man-made
8 IAQ Basics Types of Air Contaminants Vapors – Solid or liquid converted by heat to a gaseous state (i.e., methylene chloride, mercury)Gases – Formless fluid occupying an enclosure which confines it (i.e., carbon dioxide, oxygen)Fumes – Condensation of gas into particle <1 micrometers (µm) (welding)Dust – Particulate ranging in size from 0.1 to 25µmFibers – An elongated particle with aspect ratio of greater than 3:1Bioaerosols – Airborne particles that originate from living organisms (i.e., pollen, spores, fragments, waste)Many of these contaminants are found indoors, however, their concentrations usually do not cause problems for the building inhabitants. It is when the contaminants are allowed to proliferate or the ventilation system is not well maintained that problems occur.
9 Acceptable IAQAmerican Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE) defines acceptable IAQ as:“air in which there are no known contaminants at harmful concentrations as determined by authorities and at which a substantial majority (80% or more) of the people exposed do not express dissatisfaction”Even within recommended standards, still have 20% complaint rate.
10 Varied and non-specific IAQ BasicsHealth EffectsVaried and non-specificReports of health related problems and comfort issuesAir monitoring does not always support their existenceDifficult to assess and associate with building. Drs frequently diagnose symptoms as “building related” based on limited anecdotal information. There could be other causes (allergy season, infectious disease).
11 Sick Building Syndrome (SBS) vs. Building-Related Illness (BRI) Symptoms:Do not fit the pattern of any particular illnessDifficult to trace to a specific sourceRelief occurs upon leaving the buildingBRISymptoms:Are often accompanied by physical signs identified by a physician and/or laboratory findingsRelief from illness may not occur upon leaving the buildingSBS is general. Difficult to diagnose and treat.BRI is more concrete and defined
12 Sick Building Syndrome (SBS) vs. Building-Related Illness (BRI) Symptoms:HeadachesEye, nose, throat irritationDry or itchy skinFatigueDizzinessNauseaLoss of concentrationBRISymptoms:Eye, nose, throat, and upper respiratory tract irritationSkin irritation or rashesChills, fever, cough, chest tightness, congestion, sneezing, runny noseMuscle achesSimilar symptoms. BRI is more defined and treatable.
14 IAQ Basics Factors Affecting IAQ Building occupant activities Design and condition of HVACConstruction and renovation activitiesGeneral outdoor sourcesActivities: Perfume, plants, air fresheners, candles, etc.Design and Condition: New vs. old, add-onsGeneral Outdoor: pollen, mold, leaves, diesel exhaust.
15 IAQ Ventilation System Heating Ventilation and Air Conditioning (HVAC)PurposeRegulates the temperature and humidity for comfortSupplies general ventilation to decrease indoor pollutantsIn general ventilation systems regulate temperature and humidity for the comfort of building occupants. It also supplies general ventilation which decreases common indoor contaminants. The type and purpose of the HVAC system will determine the exact components found in a facility’s system.
16 IAQ Basic Ventilation System Fresh air is taken in from the outside, filtered and tempered and mixed with some portion of indoor air, then distributed throughout the building by the air handling system. Humidification and dehumidification features may also be included in the process. A portion of the air is exhausted to the outdoors. A breakdown or inadequate performance in one or more of these steps may change the quality of the indoor air. Additionally, activities under taken that block the supply or return air vents and the installation of room partitions or other such interior changes that interfere with the designed air flow of the system can also impact on the quality of the indoor air.Unit ventilators function in similar manner.For space like toilets, kitchens, mechanical rooms an exhaust system is in place to get rid of unwanted odors directly to the outdoors.Employee activities such as cleaning, painting, food preparations and equipment use such as copiers can generate to indoor contaminants as well.If a breakdown occurs here contaminants may also build up.Buildings should blow, not suck. Exhaust flow rate should be less than intake to maintain positive pressure.
19 IAQ Ventilation System Must maintain window A/C units. Window units supplied by employees must be maintained.
20 IAQ Ventilation System Air Handling Unit (AHU)Air FiltersAir filters should have a dust-spot rating between 35% and 80% or a Minimum Efficiency Rating Value (MERV) of between 8 and 13Some filters are not efficient enough to remove small fungal and bacterial sporesWant to follow manufacturers recommendations. Blowers may not be powerful enough to pull air through more efficient filters. The higher the rating, the better the protection for the equipment and the occupants. Efficiency range is recommended by EPA. Replace on regular basis Should fit tightly in filter housing component. Match efficiency of filters to specification of HVAC system.
22 IAQ Ventilation System Air Handling Unit (AHU)Humidification and DehumidificationHumidification provides moisture to the air and dehumidification removes the moistureMaintain relative humidity below 60% in all occupied spaces and in low air-velocity plenumsDrain and clean surfaces to prevent microbial growth ASHRAE recommends 30 to 60%Remove visible microbial contamination in humidifiers and dehumidifiersPrevent moisture from entering duct lining
23 IAQ Ventilation System Air Handling Unit (AHU)Coils and Drain PansCoils dehumidify the air forming condensate water which is released into drain pans and removed from the AHUCan use biocide tablets to prevent microbial growth. Source of Legionella. Check for dirt which can cause coils to malfunctionNote condition of fanCheck for proper control functionEnsure drain pan does not allow water to standClean pans regularly
24 IAQ Ventilation System Air Handling Unit (AHU)Return Air Plenum - Space above ceiling tiles is often used as return air plenumMaintain all exhaust systems that pass through plenumNo exhaust should be released into the plenumPrevent contamination of the area and ensure air flow is not blockedDo not paint wet ceiling tiles. Remove and dispose of wet ceiling tiles. Repair activities can disturb dust or generate contaminants in plenum area.
25 IAQ Ventilation System DuctsMove the filtered and conditioned air to occupied areas of the buildingCheck duct system for microbial growthExamine the reservoir of humidification units for contaminationGive particular attention to areas where moisture can collect (restricted air flow areas and duct lining)Minimize dust and debris build upPromptly repair leaks paying attention to joints
26 IAQ Ventilation System FansEnsure fan belts are operating properlyRotation
27 IAQ Ventilation System Local Exhaust SystemBuildings should remain under slightly positive pressure to avoid bringing in unfiltered airBuildings should remain under slightly positive pressure to avoid bringing in un-filtered or uncontrolled air by bringing in more outdoor air into the building than exhausted out of the building
28 IAQ Ventilation System DampersCheck condition of dampers and controlsEnsure dampers are operable and meet the design specifications for bringing in outdoor airClean screens and grilles and prevent obstructions in this areaThere may be other components for the HVAC system such as chillers, cooling towers, and boilers that will need to be checked. You may need assistance from other staff members trained in the function of some systems.Leased buildings, frequently closed to reduce costs of heating/cooling.
29 IAQ Basics Building Conditions and Effects Problem: Poorly regulated temperature and humidity levelsEffects:Temperature complaintsCondensation, microbial contaminationDryness, upper respiratory irritation, nosebleedsSolutions:Check system sizingAdjust dampersLocation of controls
30 IAQ Basics Building Conditions and Effects Problem: Disruption of air circulationEffects:Stagnant airTemperature extremesSolutions:Ensure sizing of HVAC systemBalancingInspect for blocked supply diffusers
31 IAQ Basics Building Conditions and Effects Problem: Lack of Fresh AirEffects:Stagnant airOdorsIncreased contaminant concentrationsSolutions:Develop and follow preventive maintenance scheduleEnsure dampers are open and operationalInspect filters for condition and compatibility
32 IAQ Ventilation System Exhaust from laboratory fume hood. Recommend raise and/or move.
33 PEOSH IAQ Standard N.J.A.C. 12:100-13 et seq. Adopted in 1998First IAQ Standard in U.S.Revised in 2007, PEOSH Advisory Board, IAQ SubcommitteeEffective date: May 21, 2007
34 PEOSH IAQ Standard N.J.A.C. 12:100-13 et seq. 13.1 Scope13.2 Definitions13.3 Compliance Program13.4 Control of Specific Contaminant Sources13.5 Air Quality During Renovation & Remodeling13.6 Recordkeeping13.7 Employer’s Response to Complaints13.8 IAQ Compliance Documents
35 PEOSH IAQ Standard N.J.A.C. 12:100-13.1 Scope:This subchapter shall apply to matters relating to indoor air quality in buildings occupied by public employees during regular work hours.
36 PEOSH IAQ Standard N.J.A.C. 12:100-13.2 Definitions (selected):"Designated person" means a person who has been given the responsibility by the employer to take necessary measures to assure compliance with this subchapter."Office building" means a building in which administrative, clerical or educational activities are conducted. Examples of facilities and/or operations, which are not office buildings, include repair shops, garages, print shops and warehouses.Selected DefinitionsOffice Building: Office-type workHVAC: Includes all components. Includes window A/C units.Renovation: Building modification, not repair
37 PEOSH IAQ Standard N.J.A.C. 12:100-13.2 Definitions (selected):"HVAC system" means the collective components of the heating, ventilation and air-conditioning system including, but not limited to, filters and frames, cooling coil condensate drip pans and drainage piping, outside air dampers and actuators, humidifiers, air distribution ductwork, automatic temperature controls, and cooling towers."Renovation and remodeling" means building modification involving activities that include but are not limited to: removal or replacement of walls, roofing, ceilings, floors, carpet, and components such as moldings, cabinets, doors, and windows; painting; decorating; demolition; surface refinishing; and removal or cleaning of ventilation ducts.
38 PEOSH IAQ Standard N.J.A.C. 12:100-13.3 Compliance ProgramEmployer shall identify and train a Designated PersonEmployer’s designated person shall:Establish and follow a preventative maintenance scheduleEnsure that damaged or inoperable components are replaced or repaired promptly, ensure no microbial growthImplement the use of general or local exhaust ventilationCheck the HVAC system when carbon dioxide levels exceed 1,000 ppm
39 PEOSH IAQ Standard N.J.A.C. 12:100-13.3 Compliance ProgramEmployer’s designated person shall:Check HVAC system if temperature range is outside 68°F-79°FPrevent contamination of fresh air supplyCheck natural ventilation portals are maintainedPromptly investigate all employee complaints about BRI or SBSPrepare written plan (including required components)Review and update written plan annuallyStress Temperature requirementModel written plan is provided by PEOSH\Maintain in operable condition all portals designed for introducing natural ventilationwindows, doors, vents, and stacks
40 PEOSH IAQ Standard N.J.A.C. 12:100-13.4 Control Specific Indoor ContaminantsMicrobial ContaminantsPromptly repair water intrusion that can promote growth of biologicalRemediate damp/wet material by drying or removal within 48hrs of discovery and continue until water intrusion is eliminatedRemove visible microbial contaminationAre not required to fix leak w/in 48hrs, just remove material.Clean up mold in accordance with recommended practice. Don’t have to sample. Spend money on repair.
41 PEOSH IAQ Standard N.J.A.C. 12:100-13.5 Renovation and Remodeling:Evaluate chemical hazardsNotify employees 24 hours prior to any constructionUtilize local exhaust ventilationIsolate construction areas (scheduling, physical barriers, pressure differentials)Construction areas required to be cleaned and aired out as necessary prior to re-occupancyExample notification form included in programCleaned and aired out is subjective. No visible dust or offensive odors. Temp relocate sensitive staff may be advisable.
42 PEOSH IAQ Standard N.J.A.C. 12:100-13.6 RecordkeepingRequired RecordsWritten IAQ ProgramDocumentation of Designated Person TrainingWritten Preventive Maintenance ProgramPreventive Maintenance Logand Blueprints, water treatment logs, HVAC commissioning reports, balancing reports, O&M manuals.
43 PEOSH IAQ Standard N.J.A.C. 12:100-13.6 RecordkeepingRequirements:Maintained for 3 yearsAvailable to employees and representatives for examination and copying ASAP or within 10 working daysAvailable immediately during PEOSH inspection10 day deadline is new
44 PEOSH IAQ Standard N.J.A.C. 12:100-13.7 Employer’s Response to Signed PEOSH Complaint: Not currently used.Response (w/in 15 working days) may include any of the following:Complaint unfounded;Description and documentation of remedial action taken;An outline of remedial measures planned with a timetable for completion; and/orA statement that the problem is being studied with a timetable for completion of the study
45 PEOSH IAQ Standard N.J.A.C. 12:100-13.8 IAQ Compliance DocumentsAs-built construction documentsHVAC System Commissioning ReportHVAC Systems Testing, Adjusting, and Balancing ReportsOperations and Maintenance ManualsWater Treatment LogsOperator Training MaterialsMust be provided to PEOSH, upon request (if available)As built construction documents;HVAC System Commissioning Report;HVAC Systems Testing, Adjusting and Balancing Reports;Operations and Maintenance Manuals;Water Treatment LogsOperator Training Materials
46 Other Standards Related to IAQ (Overview) PEOSH General Industry (29 CFR ) and Construction (29 CFR ) Asbestos StandardsIdentification of asbestos-containing materials in all buildings (pre-1980)Labeling and signage requirementsAnnual awareness trainingNotification of outside contractorsOther Federal and State Asbestos StandardsSchools (AHERA)-U.S. EPA/NJDHSSNJ Uniform Construction Code-Subchapter 8, NJ Dept. of Community Affairs (NJDCA)
47 Other Standards Related to IAQ (Overview) Air Contaminants Standard (29 CFR , Tables Z-1, Z-2)Access to Employee Exposure and Medical Records Standard (29 CFR )
48 PEOSH Program Response to Unacceptable IAQ Conduct Employee InterviewsReview Building Operations & Maintenance ProceduresWalk-through InspectionInspect HVAC SystemReview As-builtsConduct Sampling, if necessaryComplete PEOSH IAQ Checklist
50 IAQ Recommended Inspection Protocol Fan belts operate properly and in good conditionFilters are installed properly and replaced as scheduledDampers are open as designed and not blockedMotor functions properlyDiffusers are openedCondensate pans drainedSupply and exhaust system are properly balanced
51 IAQ PM DocumentationName of person and date work performed shown on maintenance scheduleSpecify activity performed on a work orderReason for inspectionObservationsItem repaired/replacedTime spent on activityDocument all preventative maintenance activities and repairs and retain for at least three years; andThe following information should be included in the documentation:Date the work was performedName of the person or company performing the workIdentification of the activities performed including* checking/changing air filters* checking humidification system* check damper position* checking/changing belts* lubrication of equipment parts* checking/replacing motor* confirming the operation of the equipment* checking for microbial growth
54 IAQ Scenario 2 Construction/Renovation Carpet replacement in 2nd fl. office areaAdjoining areas occupiedPerformed during regular work hours
55 IAQ Scenario 2 Construction/Renovation Inspect area for asbestos floor tiles/masticPrepare bid specsReview materials with contractor, MSDSNotify employees (less than 24 hrs.)
56 IAQ Scenario 2 Construction/Renovation Isolate work area, secure HVACMaintain negative pressureExercise good housekeepingAir-out room prior to re-occupancyRecordkeeping
57 IAQ Isolate Construction/Occupied Areas Ask what the problem is in this picture. A: bulging plastic demonstrates positive pressure in construction area.
58 IAQ Employee Complaints Follow Up on Employees ComplaintsConduct interviewsReview building operations and maintenance proceduresComplete PEOSH IAQ Inspection ChecklistInvolve employees through L/MH&SC*Communicate outcome and corrective actionReport all complaints to one personUsing the employee diary form will give insight to any patterns developing with respect to symptoms, area of concern and exposure route.Complaints should be reported to one person so that they can be accurately evaluated and assessed and problem areas identified.*Labor-Management Health & Safety Committee
59 Ask for HelpPEOSH Health Consultation ProjectLocal/County Health DepartmentsPrivate ConsultantsAmerican Industrial Hygiene Association (AIHA) -
60 Additional IAQ Resources PEOSH PublicationsPublic Employer’s Guide and Model Written Program for the Revised Indoor Air Quality StandardPEOSH Policy on Building Renovations Information BulletinRenovation & Construction in Schools-Controlling Health and Safety Hazards Information BulletinBioaerosols Information BulletinMold in The Workplace, Prevention and Control Information Bulletin
62 Additional IAQ Resources Tools for Schools (TfS) KitShows schools how to carry out a practical plan of action to improve indoor air problems at little or no cost using straightforward activities and in-house staff.Provides best practices, industry guidelines, sample policies, and a sample IAQ management plan.The voluntary guidance can save schools time and money so that resources can be directed toward educating children.Co-sponsored by the National Parent Teacher Association, National Education Association, Association of School Business Officials, American Federation of Teachers, and the American Lung Association.
63 Additional IAQ Resources Healthy SEAT – Healthy School Environments Assessment ToolFree software tool to help school systems more effectively manage all of their environmental issues.HealthySEAT is designed to be customized by school systems to conduct and manage self-assessments of their school facilities for a wide range of environmental, health, and safety issues.
64 Additional IAQ Resources IAQ Building Education and Assessment Model (I-BEAM)The I-BEAM is a guidance tool designed for use by building professionals and others interested in indoor air quality in commercial buildings.
65 Additional IAQ Resources Building Air Quality: A Guide for Building Owners and Facility Managers (BAQ Guide) and the Building Air Quality Action PlanDeveloped by the EPA and NIOSHProvides practical suggestions on preventing, identifying, and resolving indoor air quality (IAQ) problems in public and commercial buildingsProvides information on factors affecting indoor air qualityDescribes how to develop an IAQ profile of building conditions and create an IAQ management planDescribes investigative strategies to identify causes of IAQ problemsProvides criteria for assessing alternative mitigation strategies, determining whether a problem has been resolved, and deciding whether to consult outside technical specialists
66 Additional IAQ Resources Mold Remediation in Schools and Commercial BuildingsPresents guidelines for the remediation/cleanup of mold and moisture problems in schools and commercial buildingsIncludes measures designed to protect the health of building occupants and remediatorsDesigned primarily for building managers, custodians, and others who are responsible for commercial building and school maintenance
67 Additional IAQ Resources NJ Department of Health and Senior Services – Healthy Schools Web SiteThe Healthy School Facility Environments Web site was developed for parents, students, school staff, administrators, architects, engineers, and contractors. It contains important information about preventing, identifying, and controlling health and safety hazards in school buildings.