Carbon black

Health surveillance data

Administrative data

Endpoint:

health surveillance data

Adequacy of study:

other information

Study period:

before 1960

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Remarks:

smoking status of worker not provided. Occupational history of worker not known

Data source

Reference

Reference Type:

secondary source

Title:

No information

Author:

Kollo RM

Year:

1960

Bibliographic source:

Trudy Leningradskogo Sanitarno-Gigienicheskogo Meditinskogo Instituta 62, 128-131 [Russian]. As cited in IARC 2010

Materials and methods

Study type:

health record from industry

Endpoint addressed:

other: exposure conditions in a Russian channel black plant

Test material

Test material information

Constituent 1

Reference substance name:

Carbon black

EC Number:

215-609-9

EC Name:

Carbon black

Cas Number:

1333-86-4

Molecular formula:

C

IUPAC Name:

carbon

Method

Type of population:

occupational

Results and discussion

Results:

160 measurements in a Russian channel black plant were reported. Airborne dust levels ranged from 44 to 407 mg/m3 in the factory area, from 25.3 to 278.6 mg/m3 in the working aisles, from 9.3 to 972 mg/m3 in the pelleting area and from 26.7 to 208.6 mg/m3 in the packing area. Coughing, dyspnoea, and chest pains were reported twice as frequent as among non-carbon black workers from a channel black plant. Clinical investigations of workers revealed the following: chest X-ray evidence of the effects of dust with an increasing frequency of fine-loop fibrosis, thickening of the interlobular pleura, and darkening of the lung X-ray with increasing work time

Applicant's summary and conclusion

Conclusions:

No conclusions can be drawn from the reported summary of work done before 1960.

Executive summary:

Coughing, dyspnoea, and chest pains were reported twice as frequent as among non-carbon black workers from a channel black plant.  Dust concentrations were exceptionally high, with a range from 9.3 mg/m3 (minimum, found in the pelletizing area) to 972.0 mg/m3 (maximum, found in the pelletizing area). Clinical investigations of workers revealed the following: chest X-ray evidence of the effects of dust, with an increasing frequency of fine-loop fibrosis, thickening of the interlobular pleura, and darkening of the lung X-ray with increasing work time.