Language selection

Government of Canada / Gouvernement du Canada

Search

Wood preservation facilities, alkaline copper quaternary: chapter G, table 4

Previous page 
Table of contents 
Next page

Table 4.0. Potential Health Effects of Exposure to ACQ-C or ACQ-D Solutions

    Possible health effects
Exposure Category (Route of Entry) Type of exposure Short-term exposure Longer-term exposure
Estimated daily intake from various sources (air, water, food) with limited to no heath effect Footnotea
Ammonia (mostly trough food) 18.6 mg/day    
Copper oxide (an essential element) 2.47 mg/day    
Boron (food being the principal source) 1 to 4 mg/day    
Eye contact FootnotebFootnotecFootnotedFootnoteeFootnotefFootnotegFootnotehFootnotei Direct contact
  • Irritation
  • Reddening
  • Pain
  • Blurred vision
  • Ulceration
  • May cause blindness
Skin contact FootnotebFootnotecFootnotedFootnoteeFootnotefFootnotegFootnotehFootnotei Skin contact with work solutions or concentrates
  • Skin irritation
  • Reddening
  • Ulceration
  • Chemical burns, dermatitis

Exposure to airborne contaminant or dust

Inhalation FootnotebFootnotecFootnotedFootnoteeFootnotefFootnotegFootnotehFootnotei

ACGIH threshold limit value-time weighted averages (TWAs) (FootnotecFootnoted)

Inhalation of vapours

Ammonia:

  • 18 mg/m3 (25 ppm) air
  • Threshold Limit Value (TLV)Footnotec-short-term exposure limit (STEL: 24mg/m3 (35 ppm)

Copper: 1 mg/m3 air

Ethanolamine 7.5 mg/m3 air (3 ppm)

Quat: Not established

Boron: Permissible Exposure Level (PEL) is 15 mg/m3respirable dust.

  • Borate compounds, inorganic: TLV TWA 2 mg/m3 (I) = inhalable fraction
  • Boron oxide: TLV TWA 10 mg/m3
  • Corrosive irritation or burns to nose, throat and lungs; coughing; difficulty breathing; central nervous system effects
  • Chemical pneumonitis, pulmonary edema, liver and kidney disorders, death
Ingestion FootnotebFootnotecFootnotedFootnoteeFootnotefFootnotegFootnotehFootnotei Ingestion of work solution or concentrates Irritation and burns of the mouth, throat, esophagus, and digestive system; gastric distress; vomiting May be fatal

 

Table 4.1. Potential Health Effects of Exposure to Amine Copper Concentrate (Part 1)

    Possible health effects
Exposure Category Type of exposure Short-term exposure Longer-term exposure
Eye contactFootnotebFootnotecFootnotedFootnoteeFootnotefFootnotegFootnotehFootnotei Direct contact
  • Irritation
  • Reddening
  • Pain
  • Blurred vision
  • Ulceration
  • May cause blindness
Skin contactFootnotebFootnotecFootnotedFootnoteeFootnotefFootnoteg Skin contact with work solutions or concentrates
  • Skin irritation
  • Reddening
  • Ulceration, chemical burns, dermatitis

Exposure to airborne contaminant or dust

Inhalation exposure to contaminated aerosols FootnotebFootnotecFootnotedFootnoteeFootnotefFootnoteg

 Inhalation of vapours Corrosive irritation or burns to nose, throat and lung;, wheezing; difficulty breathing; visual disturbances Liver and kidney disorders, adverse lung effects, pulmonary edema, death
Ingestion FootnotebFootnotecFootnotedFootnoteeFootnotefFootnoteg Ingestion of work solution or concentrates Irritation and burns of the mouth, throat, esophagus and digestive system May be fatal

 

Table 4.2. Potential Health Effects of Exposure to Quaternary Ammonium Concentrate (Part 2)

    Possible health effects
Exposure Category Type of exposure Short-term exposure Longer-term exposure
Eye contact FootnotebFootnotecFootnotedFootnoteeFootnotefFootnoteg Direct contact
  • Irritation
  • Reddening
  • Watering
  • Blurred vision
  • Ulceration
  • May cause blindness
Skin contact Footnoteb FootnotecFootnotedFootnoteeFootnotefFootnoteg Skin contact with work solutions or concentrates
  • Skin irritation
  • Redness
  • Itching
  • Ulceration, chemical burns, dermatitis

Exposure to airborne contaminant or dust

Inhalation FootnotebFootnotecFootnotedFootnoteeFootnotefFootnoteg

 Inhalation of vapours Respiratory irritation, dizziness, central nervous system effects Potentially fatal lung damage, chemical pneumonitis
Ingestion FootnotebFootnotecFootnotedFootnoteeFootnotefFootnoteg Ingestion of work solution or concentrates Gastric distress, nausea, vomiting, diarrhea Ingestion exposure may be fatal

 

Table 4.3. Potential Health Effects of Exposure to Ammonium Hydroxide

    Possible health effects FootnoteaFootnotebFootnotecFootnotedFootnotee
Exposure Category Type of exposure Short-term exposure Longer-term exposure
Eye contactFootnoteb Eye contact is very dangerous with 28% solutions
  • Cornea can be perforated
  • Not applicable
Skin contact
  • Single contact
  • Contact of several minutes with 28% solutions
  • Skin irritation
  • Can cause corrosive damage
  • Not applicable

Exposure to vapour, to airborne contaminant or dust

N.B. Evaporation of the substance at 20°C

Inhalation of vapours

TLV(Footnotec)-time weighted averages (TWA): 18 mg/m3 air (25 ppm)

TLV(Footnotec)-short-term exposure limit (STEL): 24 mg/m3 (35 ppm)
  • Severe irritation of nose and throat at 400 ppm Irritation of eyes at 700 ppm
  • At high concentration: laryngeal oedema, inflammation of the respiratory tract and pneumonia(Footnoteb)
  • An MRL of 1.7 ppm has been derived for acute-duration inhalation exposure (≤14 days).
  • No MRL was derived for intermediate duration (15-364 days).
  • Coughing and sneezing occur almost immediately after excessive inhalation of ammonia fumes.

Minimal Risk Levels (MRLs) (as NH3) Footnoted

  • An MRL of 0.2 ppm has been derived for chronic-duration inhalation exposure (≥1 year).
   
  • Convulsive coughing at 1720 ppm
    May be fatal after 0.5-hour exposure
  • Not applicable
   
  • Respiratory spasm and asphyxia at 5000 to 10 000 ppm
    Rapidly fatal for exposure causing these symptoms
  • Not applicable
Ingestion Ingestion of work solutions or concentrates
  • Nausea, abdominal pain, vomiting, shock, coma
  • Death may occur from ingestion of more than 30 mL (1 oz.) of 25% solution
  • Not applicable
Previous page 
Table of contents 
Next page

Page details

2017-09-12