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Time to sunburn 

by Daniel ZvaraDaniel ZvaraJun 15, 2021
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 1. Time to sunburn [?]
     1.
         1. Fitzpatrick Skin Types
         2. Location
         3. Sun protection factor (sunscreen) 

Time to sunburn [?]

Summer is here, and the sun is up! But it's not always easy to know
how long we can enjoy it while staying safe. In this article I'm
using Python to calculate how long you can safely sunbath, based on
your skin type, geographical location and sunscreen applied. Let's
have a look!

Fitzpatrick Skin Types

Skin_type
[Type II ]

Location

Location
[San Francisco       ]
from geopy.geocoders import Nominatim import requests import pandas 
as pd import os skin_type_coeff = { 'Type I': 5, 'Type II': 10, 'Type
III': 15, 'Type IV': 25, 'Type V': 45, 'Type VI': 90, } # retrieve
GPS coordinates geolocator = Nominatim(user_agent="deepnote")
location = geolocator.geocode(Location) if not location: raise
Exception('Location not found') location

Sun protection factor (sunscreen) 

spf
[15]
import os import requests OPENCAGEDATA_API_KEY = os.environ[
'OPENCAGEDATA_API_KEY'] # retrieve GPS coordinates location_response 
= requests.get(f'https://api.opencagedata.com/geocode/v1/json?key={
OPENCAGEDATA_API_KEY}&q={Location}&no_annotations=1&limit=1') if not
location_response.ok: raise Exception('Location not found')
location_json = location_response.json() coordinates = location_json[
'results'][0]['bounds']['northeast'] # fetch weather info
raw_response = requests.get(f'https://api.openweathermap.org/data/2.5
/onecall?lat={coordinates["lat"]}&lon={coordinates["lng"]}&exclude=
minutely,hourly,daily,alerts&appid={os.environ["OPENWEATHER_API_KEY"]
}') if not raw_response.ok: raise Exception('Failed to fetch weather
data') response = raw_response.json() uvi = response['current']['uvi'
] # calculate exposure time spf = max(int(spf), 1) def get_exposure(
coeff): return (coeff * 8 / max(1, uvi))*spf
Visualization ofsafe_exposure_times
[                    ]Bar Chart
X axis
[                    ]safe exposure (minutes)
Y axis
[                    ]skin type
Color
[                    ]safe exposure (minutes)

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