Instruction Manual

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WEATHER DATA MEASURED & CALCULATED

UV (Ultra Violet) Radiation

T. B. Fitpatrick of the Harvard Medical School developed a categorization of skin

types 1 through 6 which were adopted by Environment Canada. These skin types

are detailed in Table 3b below.

Note:More about the Fitzpatrick Skin Types is available in: Fitzpatrick TB. Editorial: the validity

and practicality of sun-reactive skin types I through VI. Arch Dermatol 1988; 124:869-871

TABLE A1: EPA SKIN PHOTOTYPES

SKIN PHOTO-

TYPE

SKIN COLOR TANNING & SUNBURN HISTORY

1 - Never tans,

always burns

Pale or milky white;

alabaster

Develops red sunburn; painful

swelling, skin peels

2 - Sometimes

tans, usually

burns

Very light brown;

sometimes freckles

Usually burns, pinkish or red color-

ing appears;

can gradually develop light brown

tan

3 - Usually tans,

sometimes

burns

Light tan; brown, or

olive;

distinctly pigmented

Rarely burns; shows moderately

rapid tanning response

4 - Always tans;

rarely burns

Brown, dark brown,

or black

Rarely burns; shows very rapid tan-

ning response

ABLE A2: ENVIRONMENT CANADA SKIN TYPES AND REACTION TO THE SUN

SKIN

TYPE

SKIN COL-

HISTORY OF TANNING & SUN-

BURNING

I White Always burns easily, never tans

II White Always burns easily, tans mini-

mally

III Light

Brown

Burns moderately, tans gradu-

ally

IV Moderate

Brown

Burns minimally, tans well

VDark

Brown

Burns rarely, tans profusely

VI Black Never burns, deep pigmenta-

tion