19. Silicosis

Question 1

what is silicosis

Answer 1

lung fibrosis caused by inhalation of dust containing silica

Question 2

what is silica, another name and chemical symbol

Answer 2

another name : quartz
SiO2

Question 3

where is quartz found

Answer 3

earth’s crust, common
all 3 types of rocks
main mineral inside desert sand and beaches

Question 4

what are some building products that contain silica

Answer 4

concrete, brick

Question 5

what immune cells attack silica

Answer 5

macrophages

Question 6

what do macrophages do

Answer 6

engluf and try to dissolve silica crystals
carry silica into lung walls

Question 7

what forms around dead cells

Answer 7

scar tissues
can continue even after exposure stops

Question 8

silicosis is a type of …?

Answer 8

pulmonary fibrosis, similar to asbestosis

Question 9

Scar formation

Answer 9

excess fibrous connective tissue
thickening. of lung walls
less oxygen to blood
shortness of breath

Question 10

pulmonary fibrosis

Answer 10

progressive
fatal lung disease , only survive 3-5 years

Question 11

Particles under what size will trap in lungs

Answer 11

10 um less than

Question 12

what size particles are inhaled into nose or mouth

Answer 12

100um

Question 13

3 types of ways gaseous things can enter

Answer 13

respirable, thoracic and inhalable

Question 14

Smallest particles are …

Answer 14

Respirable, particles that go into alveoli, deepest part of lungs

Question 15

what causes silicosis

Answer 15

crystalline silica exposure
chipping, cutting, drilling, grinding soil or grainite
or disturbing earth’s crust

Question 16

occupations leading to silica exposure

Answer 16

coal, rock mining
construction
tunnel work
steel industry
ceramic
stone cutting

Question 17

silica symptoms seriousness

Answer 17

worsen after scarring
appear after few weeks to many years

Question 18

early silica symptom

Answer 18

coughing

Question 19

acute silicosis

Answer 19

fever
sharp chest pain
breathing difficulty
sudden symptoms

Question 20

chronic silicosis

Answer 20

slowly develops
xray shows it
breathing diffuclty
phlegm build up
looks like bronchitis
wheezing

Question 21

what sympyoms happen due to scarring

Answer 21

chronic lung disease
leg swelling
breathing rate increase
lips discolouring to blue

Question 22

what can be used to surpress dust

Answer 22

water

Question 23

what can capture the silica source

Answer 23

vacuum

Question 24

what should be used if water and vacuum don’t work

Answer 24

approved respirator, wont protect nearby people though

Question 25

is silicosis reversible, is there a cure?

Answer 25

no

Question 26

what are good hygeine measures with silica

Answer 26

dont eat near dusty areas
change into clothes before leaving
park cars away from exposure
wash hands

Question 27

workers potentially over exposed to airborne respirable crystalline silica were identified at ….

Answer 27

most of the worksites

Question 28

where is the silica is found in relation to coal

Answer 28

sandstone and shale layers
right below coal
2m

Question 29

what is black lung also called

Answer 29

coal worker’s pneumoconiosis

Question 30

how does black lung occur

Answer 30

exposure to coal dust

Question 31

what is black lung similar to

Answer 31

asbesteosis and silicosis

Question 32

what does black lung lead to

Answer 32

builds in lungs
inflammation
fibrosis
death
NO CURE