Carbon dioxide monitoring : preliminary results report 2019


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Carbon dioxide monitoring : preliminary results report 2019

Material Information

Title:
Carbon dioxide monitoring : preliminary results report 2019
Creator:
Meyer, Sonia
Publisher:
Carlsbad Caverns National Park
Publication Date:
Physical Description:
1 online resource

Subjects

Subjects / Keywords:
Caves ( lcsh )
Carbon dioxide ( lcsh )
Location:
North and Central America -- United States -- New Mexico -- Eddy -- Carlsbad Caverns National Park

Notes

Original Version:
50 p.

Record Information

Source Institution:
University of South Florida
Holding Location:
University of South Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
K26-05598 ( USFLDC DOI )
k26-5598 ( USFLDC Handle )

USFLDC Membership

Aggregations:
University of South Florida
Karst Information Portal

Postcard Information

Format:
Book

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......................... 4 ................................ ................................ ................................ ................................ ................................ ......................... 5 ................................ ......... 9 ................................ ......... 9 ................................ ................................ ................................ ................................ ................................ .... 10 ................................ ................................ ................................ ................................ ................................ .................. 10 ................................ ................................ ............. 13 ................................ ... 15 ............................ 16 ................................ ..... 17 ................................ ... 17 ................................ ................................ . 18 ...... 18 ................................ ................................ ................................ ................................ ................................ 19 .......................... 20

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CO 2 Concentration Effect on Humans 300 400 ppm Outdoor 350 1,000 ppm Concentrations typical of occupied indoor spaces wi th good air exchange 1,000 2,000 ppm Complaints of drowsiness and poor air >2,000 ppm Ventilation is necessary! Lung ventilation increases by 50 percent, headache after several hours exposure 2,000 5,000 ppm Headaches, sleepiness and stagnant, stale, st uffy air; Poor concentration, loss of attention, increased heart rate and slight nausea may also be present; Lung ventilation increases by 100 percent, panting after exertion 5,000 ppm Workplace exposure limit (as 8 hour TWA) in most jurisdictions; TLV TW A (40 hour work week)

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26

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µ

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0 1 2 3 4 5 6 7 8 9 Number of Occurences Hour of Daily Minimum CO2 Concentration Elevator Big Room Junction King's Palace 0 1 2 3 4 5 6 7 8 9 10 Number of Occurences Hour of Daily Maximum CO2 Concentration Elevator Big Room Junction King's Palace

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0 10 20 30 40 50 60 70 80 Sun Mon Tue Wed Thu Fri Sat Average of Daily Maximum Normalized Values Elevator Big Room Junction 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 Daily Maximum CO2 Concentration (ppm) Elevator Big Room Junction King's Palace OSHA Safety Limit

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R² = 0.8575 R² = 0.8439 1000 1500 2000 2500 3000 3500 4000 0 10 20 30 40 50 60 Daily Visitation Daily Normalized CO2 Value (ppm) Elevator Big Room Junction Linear (Elevator) Linear (Big Room Junction)

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0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 30 35 40 45 50 1 11 21 31 41 51 61 71 81 91 Normalized CO2 Value Decibel Level (dB) 5 minute intervals on July 19, 2019 8:30 AM 4:30 PM Big Room Junction Sound Big Room Junction CO2 Level

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31 GE Sensing, Telaire . 32 Dragovich, Impact of , 111 120.; James, Encyclopedia, 730 731.


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