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PHILIPPINE ENVIRONMENT LAWS

This page features the full text of
ANNEX "A" OF THE IMPLEMENTING RULES AND REGULATIONS
OF REPUBLIC ACT NO. 8749
  The Philippine Clean Air Act of 1999.

 
Read full text of:chanroblesvirtuallawlibrary
THE PHILIPPINE CLEAN AIR ACT OF 1999
REPUBLIC ACT NO. 8749
IMPLEMENTING RULES AND REGULATIONS
OF REPUBLIC ACT NO. 8749
ANNEX "A"
IMPLEMENTING RULES AND REGULATIONS
ANNEX "B"
IMPLEMENTING RULES AND REGULATIONS
ANNEX "C"
IMPLEMENTING RULES AND REGULATIONS
_______________________
IMPLEMENTING RULES AND REGULATIONS
OF REPUBLIC ACT NO. 8749
PHILIPPINE CLEAN AIR ACT OF 1999
  ANNEX "A"
AIR QUALITY INDICES
 
Air Quality Indices. – The following shall describe the six (6) levels of air quality for suspended particulates, sulfur dioxide, photochemical oxidants or ozone, carbon monoxide, and nitrogen dioxide anywhere in the Philippines. Levels above those indicated, with the exception of TSP, shall be considered Emergency:

(a) Particulate Matter (m g/m3)

(1) Total Suspended Particulates – (24-Hour Average)
 
 

Good  0 - 80 
Fair  81 - 230 
Unhealthy for sensitive groups  231 - 349 
Very Unhealthy  350 - 599 
Acutely unhealthy  600 - 899 
Emergency  900 – and above 
 
(2) PM10 [24-hour] 
 
Good  0 – 54 
Fair  55 – 154 
Unhealthy for sensitive groups  155 – 254 
Very Unhealthy  255 – 354 
Acutely unhealthy  355 – 424 
Emergency  425 – 504 
 
(b) Sulfur Dioxide (ppm) [24-hour]
 
Good  0.000 – 0.034 
Fair  0.035 – 0.144 
Unhealthy for sensitive groups  0.145 – 0.224 
Very Unhealthy  0.225 – 0.304 
Acutely unhealthy  0.305 – 0.604 
Emergency  0.605 – 0.804 
 
(c) Ozone (ppm)
 
[8-hour]
 
Good  0.000 – 0.064 
Fair  0.065 – 0.084 
Unhealthy for sensitive groups  0.085 – 0.104 
Very Unhealthy  0.105 – 0.124 
Acutely unhealthy  0.125 – 0.374 
Emergency  (1
 
1 When 8-hour O3 concentrations exceed 0.374 ppm, AQI values of 301 or higher must be calculated with 1-hour O3 concentrations.
 
[1-hour]2
 
Good 
Fair 
Unhealthy for sensitive groups  0.125 – 0.164 
Very Unhealthy  0.165 – 0.204 
Acutely unhealthy  0.205 – 0.404 
Emergency  0.405 – 0.504 
 

2 Areas are generally required to report the AQI based on 8-hour ozone values. However, there are a smaller number of areas where an AQI based on 1-hour ozone values would be more precautionary. In these cases, in addition to calculating the 8-hour ozone index value, the 1-hour index value may be calculated and the maximum of the two values is reported.

 
(d) Carbon Monoxide (ppm) [8-hour]
 

Good  0.0 – 4.4 
Fair  4.5 – 9.4 
Unhealthy for sensitive groups  9.5 – 12.4 
Very Unhealthy  12.5 – 15.4 
Acutely unhealthy  15.5 – 30.4 
Emergency  30.5 – 40.4 
 
(e) Nitrogen Dioxide (ppm) [1-hour]
 
Good  (3
Fair  (3
Unhealthy for sensitive groups  (3
Very Unhealthy  (3
Acutely unhealthy  0.65 – 1.24 
Emergency  1.25 – 1.64 
 
3 NO2 has no 1-hour term NAAQG.
 
Pollutant-Specific Cautionary Statements for the General Public.
 
(a) Particulate Matter (m g/m3
 
TSP and PM10 [24-hour]
 
Good  None 
Fair  None 
Unhealthy for sensitive groups  People with respiratory disease, such as asthma, should limit outdoor exertion. 
Very unhealthy  Pedestrians should avoid heavy traffic areas. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. People should voluntarily restrict the use of vehicles. 
Acutely unhealthy  People, should limit outdoor exertion. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. Motor vehicle use may be restricted. Industrial activities may be curtailed. 
Emergency  Everyone should remain indoors, (keeping windows and doors closed unless heat stress is possible). Motor vehicle use should be prohibited except for emergency situations. Industrial activities, except that which is vital for public safety and health, should be curtailed. 
 
(b) Sulfur Dioxide (ppm) [24-hour]

     
    Good  None 
    Fair  None 
    Unhealthy for sensitive groups  People with respiratory disease, such as asthma, should limit outdoor exertion. 
    Very unhealthy  Pedestrians should avoid heavy traffic areas. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. People should voluntarily restrict the use of vehicles. 
    Acutely unhealthy  People, should limit outdoor exertion. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. Motor vehicle use may be restricted. Industrial activities may be curtailed. 
    Emergency  Everyone should remain indoors, (keeping windows and doors closed unless heat stress is possible). Motor vehicle use should be prohibited except for emergency situations. Industrial activities, except that which is vital for public safety and health, should be curtailed. 
     
(c) Ozone (ppm)
     
    Good  None 
    Fair  None 
    Unhealthy for sensitive groups  People with respiratory disease, such as asthma, should limit outdoor exertion. 
    Very unhealthy  Pedestrians should avoid heavy traffic areas. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. People should voluntarily restrict the use of vehicles. 
    Acutely unhealthy  People, should limit outdoor exertion. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. Motor vehicle use may be restricted. Industrial activities may be curtailed. 
    Emergency  Everyone should remain indoors, (keeping windows and doors closed unless heat stress is possible). Motor vehicle use should be prohibited except for emergency situations. Industrial activities, except that which is vital for public safety and health, should be curtailed. 
     
(d) Carbon Monoxide (ppm) 
     
    Good  None 
    Fair  None 
    Unhealthy for sensitive groups  People with cardiovascular disease, such as angina, should limit heavy exertion and avoid sources of CO, such as heavy traffic. 
    Very unhealthy  People should stay indoors and rest as much as possible. Unnecessary trips should be postponed. People should voluntarily restrict the use of vehicles and avoid sources of CO, such as heavy traffic. Smokers should refrain from smoking. 
    Acutely unhealthy  People with cardiovascular disease, such as angina, should avoid exertion and sources of CO, such as heavy traffic, and should stay indoors and rest as much as possible. Unnecessary trips should be postponed. Motor vehicle use may be restricted. Industrial activities may be curtailed. 
    Emergency  Everyone should avoid exertion and sources of CO, such as heavy traffic; and should stay indoors and rest as much as possible. 
     
(d) Nitrogen Dioxide (ppm) 
 
Good  None 
Fair  None 
Unhealthy for sensitive groups  People with respiratory disease, such as asthma, should limit outdoor exertion. 
Very unhealthy  Pedestrians should avoid heavy traffic areas. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. People should voluntarily restrict the use of vehicles. 
Acutely unhealthy  People should limit outdoor exertion. People with heart or respiratory disease, such as asthma, should stay indoors and rest as much as possible. Unnecessary trips should be postponed. Motor vehicle use may be restricted. Industrial activities may be curtailed. 
Emergency  Everyone should remain indoors, (keeping windows and doors closed unless heat stress is possible). Motor vehicle use should be prohibited except for emergency situations. Industrial activities, except that which is vital for public safety and health, should be curtailed. 
 
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