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Air Quality, Atmosphere & Health

, Volume 12, Issue 8, pp 891–897 | Cite as

International prevalence of fragrance sensitivity

  • Anne SteinemannEmail author
Open Access
Article

Abstract

Emissions and exposures from fragranced consumer products, such as air fresheners and cleaning supplies, have been associated with health problems and societal impacts. This study investigates effects of fragranced consumer products on the general population in four countries: United States, Australia, United Kingdom, and Sweden. Nationally representative population surveys (n = 1137; 1098; 1100; 1100) found that, across the four countries, 32.2% of adults (34.7%, 33.0%, 27.8%, 33.1% respectively) report fragrance sensitivity; that is, adverse health effects from fragranced consumer products. For instance, 17.4% report health problems from air fresheners or deodorizers, and 15.7% from being in a room cleaned with scented products. Commonly reported health problems include respiratory difficulties (16.7%), mucosal symptoms (13.2%), migraine headaches (12.6%), skin rashes (9.1%), and asthma attacks (7.0%). For 9.5% of the population, the severity of health effects can be considered disabling. Further, 9.0% of the population have lost workdays or lost a job, in the past year, due to illness from fragranced product exposure in the workplace. Personal estimated costs due to these lost workdays and lost jobs, across the four countries in one year, exceed $146 billion (USD). A majority of people across the countries would prefer that workplaces, health care facilities and professionals, hotels, and airplanes were fragrance-free rather than fragranced. The study highlights a concern for public health and societal well-being, as well as an approach to reduce risks and costs: reduce exposure to fragranced products.

Keywords

Fragrance sensitivity Fragranced consumer products Indoor air quality Fragrance Health effects 

Introduction

“Fragrance sensitivity” is a health condition characterized by adverse health effects from exposure to fragranced consumer products (Caress and Steinemann 2009). A “fragranced consumer product” (or “fragranced product”) is a product that contains an added fragrance or that is largely comprised of fragrance (Steinemann 2016). Fragranced products can include air fresheners, deodorizers, cleaning supplies, laundry detergents, fabric softeners, essential oils, scented candles, soaps, personal care products, colognes, and hand sanitizers, to name a few out of numerous everyday items. A single “fragrance” in a product is typically a complex mixture of dozens of compounds, many derived from petrochemicals (Sell 2006), among nearly 4000 documented fragrance ingredients (IFRA 2016).

No law in any country requires full disclosure of all ingredients in a fragrance. Instead of listing specific ingredients, a product may list the general term “fragrance” (or another legally accepted term, such as “perfume”). Further, no law requires full disclosure of all ingredients in a consumer product (other than for foods, drugs, and cosmetics), not even the general term “fragrance.” Thus, consumers have limited information about individual fragrance ingredients in a product as well as whether a product even contains a fragrance (Lunny et al. 2017; Steinemann 2009).

Exposure to fragranced products has been associated with a range of adverse human health and societal effects among the general population, and especially among vulnerable sub-populations such as individuals with asthma (Weinberg et al. 2017; Steinemann 2018c; Steinemann et al. 2018), autism (Steinemann 2018d), and chemical sensitivity (Steinemann 2019). Fragrance sensitivity can also be considered a disabling health condition that is covered under disability legislation in certain countries. However, relatively little research has investigated the prevalence of fragrance sensitivity, and more specifically links between fragranced consumer products and adverse health and societal effects.

This study investigates the effects of exposure to fragranced products on adults in four countries: United States (US), Australia (AU), United Kingdom (UK), and Sweden (SE). It builds upon and extends the individual national studies in the US, AU, UK, and SE (Steinemann 2016, 2017a, 2018a, b), offering greater breadth and depth of analysis, including new data and results on specific fragranced product exposures associated with specific health effects, amounts and costs of lost workdays and lost jobs, and comparisons and summaries across countries.

Methods

This international study is based on four nationally representative cross-sectional surveys of adults ages 18–65 in the US, AU, UK, and SE. Sample populations (n = 1137, 1098, 1100, 1100, respectively) were representative of the general populations according to age, gender, and region (confidence limit = 95%, margin of error = 3% for all studies). Using randomized participant recruitment, the surveys drew upon large web-based panels (with over 5,000,000; 200,000; 900,000; 60,000 participants, respectively) held by Survey Sampling International. For the panels, SSI uses multi-source samples to develop a blend that reflects the heterogeneity of the study population. For the surveys, recruitment followed a three-step randomization process to identify potential participants (see Electronic Supplementary Materials (ESM-Methods and ESM-SSI)). The survey instrument, the same questionnaire in each country’s native language, was developed and tested over a two-year period before full implementation in June 2016 (US, AU, UK) and June 2017 (SE). The survey response rates were 94%, 93%, 97%, and 92% (respectively), and all responses were anonymous. Descriptive statistics and cross-tabulations determined percentages according to each response and sub-population; see Electronic Supplementary Material (ESM-Data). The research study received ethics approval from the University of Melbourne. Survey methods are detailed in the Electronic Supplementary Material (ESM-Methods).

To promote comparability, the survey replicated questions from previous studies of fragrance sensitivity (Steinemann 2016, 2017a, 2018a, b, c, d, 2019; Steinemann et al. 2018; Caress and Steinemann 2009), as follows.

For fragrance sensitivity, the survey asked, “Do you experience any health problems when exposed to (fragranced product)?” If the respondent answered yes, the survey then asked about which health problems they experienced. An individual was considered to characterize fragrance sensitivity if they reported one or more types of health problems from exposure to one or more types of fragranced consumer products.

Fragranced products were categorized as follows: (a) air fresheners and deodorizers (e.g., sprays, solids, oils, disks); (b) personal care products (e.g., soaps, hand sanitizer, lotions, deodorant, sunscreen, shampoos); (c) cleaning supplies (e.g., all-purpose cleaners, disinfectants, dishwashing soap); (d) laundry products (e.g., detergents, fabric softeners, dryer sheets); (e) household products (e.g., scented candles, restroom paper, trash bags, baby products); (f) fragrance (e.g., perfume, cologne, after-shave, essential oils); and (g) other.

Exposure contexts included the following: air fresheners or deodorizers used within indoor environments; scented laundry products coming from a dryer vent; being in a room after it was cleaned with scented cleaning products; being near someone wearing a fragranced product; and exposure to other types of fragranced consumer products.

Health effects were categorized as follows: (a) migraine headaches; (b) asthma attacks; (c) neurological problems (e.g., dizziness, seizures, head pain, fainting, loss of coordination); (d) respiratory problems (e.g., difficulty breathing, coughing, shortness of breath); (e) skin problems (e.g., rashes, hives, red skin, tingling skin, dermatitis); (f) cognitive problems (e.g., difficulties thinking, concentrating, or remembering); (g) mucosal symptoms (e.g., watery or red eyes, nasal congestion, sneezing); (h) immune system problems (e.g., swollen lymph glands, fever, fatigue); (i) gastrointestinal problems (e.g., nausea, bloating, cramping, diarrhea); (j) cardiovascular problems (e.g., fast or irregular heartbeat, jitteriness, chest discomfort); (k) musculoskeletal problems (e.g., muscle or joint pain, cramps, weakness); and (l) other.

Societal effects included the following: ability to access restrooms, businesses, public places, and other locations that use air fresheners or fragranced products; disabling effects; lost workdays or lost jobs due to fragranced product exposure; associated economic costs; and preferences for fragrance-free environments.

Results

This section provides the main findings, with summaries in Tables 1, 2, 3, and 4. Complete data and statistical analyses for each country individually, and across the four countries, are provided as Electronic Supplementary Material (ESM-Data).
Table 1

Adverse health effects associated with exposure to fragranced consumer products

 

US

AU

UK

SE

Sum/average (%)

General population (n)

1137

1098

1100

1100

4435

Adverse health effects from fragranced products (fragrance sensitive)

34.7%

33.0%

27.8%

33.1%

32.2%

Health problems from exposure to

  Air fresheners or deodorizers

20.4%

16.4%

15.5%

17.3%

17.4%

  Fragranced laundry products from dryer vent

12.5%

6.1%

6.0%

5.6%

7.6%

  Room cleaned with fragranced products

19.7%

15.3%

14.0%

13.8%

15.7%

  Someone wearing a fragranced product

23.6%

19.4%

13.7%

23.5%

20.1%

  Other type of fragranced product

22.3%

20.3%

13.9%

17.9%

18.6%

Type of health problem

  *Migraine headaches

15.7%

10.0%

8.4%

16.1%

12.6%

  *Asthma attacks

8.0%

7.6%

6.8%

5.5%

7.0%

  *Neurological problems (e.g., dizziness, seizures, head pain, fainting, loss of coordination)

7.2%

4.5%

3.7%

5.0%

5.1%

  *Respiratory problems (e.g., difficulty breathing, coughing, shortness of breath)

18.6%

16.7%

11.6%

20.0%

16.7%

  *Skin problems (e.g., rashes, hives, red skin, tingling skin, dermatitis)

10.6%

9.5%

9.8%

6.5%

9.1%

  *Cognitive problems (e.g., difficulties thinking, concentrating, or remembering)

5.8%

4.1%

2.8%

4.5%

4.3%

  *Mucosal symptoms (e.g., watery or red eyes, nasal congestion, sneezing)

16.2%

14.0%

9.2%

13.5%

13.2%

  *Immune system problems (e.g., swollen lymph glands, fever, fatigue)

4.0%

3.3%

1.9%

1.5%

2.7%

  *Gastrointestinal problems (e.g., nausea, bloating, cramping, diarrhea)

5.5%

3.3%

3.0%

3.5%

3.8%

  *Cardiovascular problems (e.g., fast or irregular heartbeat, jitteriness, chest discomfort)

4.4%

3.0%

3.2%

2.1%

3.2%

  *Musculoskeletal problems (e.g., muscle or joint pain, cramps, weakness)

3.8%

2.6%

2.0%

1.5%

2.5%

  *Other

1.7%

1.9%

2.1%

2.2%

2.0%

Table 2

Adverse health effects associated with four types of exposure to fragranced products: air fresheners or deodorizers; scented laundry products coming from a dryer vent; being in a room after it has been cleaned with scented products; being near someone wearing a fragranced product

 

Air fresheners

Scented laundry products

Scented cleaning products

Fragranced person

US

AU

UK

SE

Ave %

US

AU

UK

SE

Ave %

US

AU

UK

SE

Ave %

US

AU

UK

SE

Ave %

General population (n)

1137

1098

1100

1100

 

1137

1098

1100

1100

 

1137

1098

1100

1100

 

1137

1098

1100

1100

 

 Total (%) affected

20.4%

16.4%

15.5%

17.3%

17.4%

12.5%

6.1%

6.0%

5.6%

7.6%

19.7%

15.3%

14.0%

13.8%

15.7%

23.6%

19.4%

13.7%

23.5%

20.1%

 Total (n) affected

232

180

170

190

 

142

67

66

62

 

224

168

154

152

 

268

213

151

259

 

Health Effects (% of column total)

 Migraines

35.3%

25.6%

23.5%

38.9%

30.8%

26.1%

20.9%

22.7%

29.0%

24.7%

33.5%

22.6%

26.6%

44.7%

31.9%

35.8%

25.4%

24.5%

49.0%

33.7%

 Asthma attacks

22.8%

27.2%

25.9%

18.9%

23.7%

19.7%

22.4%

34.8%

19.4%

24.1%

20.5%

16.1%

21.4%

13.8%

18.0%

16.4%

17.4%

16.6%

13.9%

16.1%

 Neurological

15.5%

13.3%

8.8%

16.8%

13.6%

16.9%

11.9%

12.1%

9.7%

12.7%

21.0%

10.1%

11.7%

11.2%

13.5%

15.3%

12.2%

8.6%

10.8%

11.7%

 Respiratory

46.6%

55.6%

44.7%

55.3%

50.6%

32.4%

41.8%

31.8%

30.6%

34.2%

48.7%

48.8%

42.9%

53.3%

48.4%

44.0%

42.7%

30.5%

59.5%

44.2%

 Skin

28.0%

29.4%

29.4%

17.9%

26.2%

28.9%

34.3%

25.8%

32.3%

30.3%

20.1%

18.5%

23.4%

9.9%

18.0%

14.6%

8.9%

17.2%

6.9%

11.9%

 Cognitive

13.4%

11.7%

8.2%

11.1%

11.1%

10.6%

16.4%

16.7%

11.3%

13.8%

13.8%

11.9%

10.4%

11.8%

12.0%

11.2%

8.0%

7.9%

11.2%

9.6%

 Mucosal

37.1%

37.8%

28.8%

39.5%

35.8%

33.8%

25.4%

18.2%

27.4%

26.2%

37.1%

39.3%

26.6%

42.8%

36.5%

36.6%

40.8%

33.8%

33.2%

36.1%

 Immune system

9.1%

11.1%

5.9%

3.7%

7.5%

13.4%

29.9%

13.6%

6.5%

15.9%

10.3%

10.7%

5.8%

2.6%

7.4%

7.1%

6.6%

3.3%

1.9%

4.7%

 Gastrointestinal

13.4%

8.9%

10.0%

7.4%

9.9%

20.4%

19.4%

10.6%

4.8%

13.8%

14.3%

9.5%

7.1%

7.2%

9.5%

11.6%

7.5%

7.9%

9.7%

9.2%

 Cardiovascular

12.9%

11.7%

13.5%

5.3%

10.9%

10.6%

22.4%

9.1%

9.7%

13.0%

11.6%

8.3%

7.1%

3.3%

7.6%

7.5%

6.1%

8.6%

3.1%

6.3%

 Musculoskeletal

11.6%

10.0%

6.5%

2.6%

7.7%

16.2%

14.9%

12.1%

8.1%

12.8%

10.3%

6.5%

4.5%

2.0%

5.8%

6.3%

6.1%

7.3%

2.3%

5.5%

 Other

3.4%

3.3%

4.1%

5.8%

4.2%

2.8%

3.0%

1.5%

8.1%

3.9%

1.8%

4.2%

5.8%

2.6%

3.6%

2.6%

4.2%

4.0%

3.5%

3.6%

Table 3

Societal effects associated with exposure to fragranced consumer products

 

US

AU

UK

SE

Sum/average %

General population (n)

1137

1098

1100

1100

4435

Fragrance sensitive (n)

394

362

306

364

1426

Adverse health effects from exposure to fragranced products

34.7%

33.0%

27.8%

33.1%

32.2%

Disabling health effects from fragranced product exposure

  (For general population)

17.2%

5.6%

7.1%

8.0%

9.5%

  (For fragrance sensitive)

49.5%

17.1%

25.5%

24.2%

29.1%

  Unable to use restrooms in public place because of air freshener or scented product

17.5%

11.6%

12.1%

12.0%

13.3%

  Unable to wash hands because of fragranced soap

14.1%

10.3%

10.3%

6.7%

10.4%

  Leave a business quickly because of fragranced product

20.1%

16.7%

13.1%

18.1%

17.0%

  Prevented from access to some place because of fragranced product

22.7%

15.0%

13.5%

12.6%

22.7%

Lost workdays or lost jobs in past year due to fragranced product exposure in workplace

  (For general population)

15.1%

7.7%

6.3%

6.7%

9.0%

  (For fragrance sensitive)

43.7%

23.5%

22.5%

20.3%

27.5%

  Population affected

3.02 × 107

1.12 × 106

2.23 × 106

4.01 × 105

3.39 × 107

  Lost workdays (8-h equivalents) due to fragranced product exposure

1.87 × 108

6.42 × 107

1.14 × 107

1.79 × 106

2.07 × 108

  Lost workdays per person

6.2

5.7

5.1

4.5

5.1 (ave)

  Personal economic costs in past year due to fragranced product exposure in workplace (2016 USD equivalent)

$1.32 × 1011

$2.66 × 109

$1.05 × 1010

$9.00 × 108

$1.46 × 1011

Table 4

Preferences for fragrance-free environments

 

US

AU

UK

SE

Ave %

Fragrance-free workplaces

Yes

53.1%

42.8%

44.7%

50.7%

47.8%

No

19.7%

22.2%

23.3%

16.4%

20.4%

Fragrance-free health care facilities and health care professionals

Yes

54.8%

43.2%

43.3%

64.1%

51.4%

No

22.4%

25.2%

26.7%

14.0%

22.1%

Hotel without fragranced air

Yes

55.6%

55.6%

53.8%

77.7%

60.7%

No

27.8%

22.7%

28.1%

9.8%

22.1%

Airplane without fragranced air

Yes

59.2%

57.7%

61.9%

80.2%

64.8%

No

23.6%

16.3%

18.4%

6.0%

16.1%

Fragrance sensitivity prevalence, fragranced product exposures, and health effects

Among the general population in four countries, 32.2% of adults (34.7%, 33.0%, 27.8%, and 33.1%, respectively) report health problems when exposed to fragranced consumer products.

Fragranced product exposures associated with health problems, among the general population, include air fresheners and deodorizers (17.4%), fragranced laundry products from a dryer vent (7.6%), being in a room recently cleaned with fragranced products (15.7%), being near someone wearing a fragranced product (20.1%), and other types of fragranced consumer products (18.6%) (see Table 1).

Most common types of adverse health effects associated with these fragranced product exposures, among the general population, include respiratory problems (16.7%), mucosal symptoms (13.2%), migraine headaches (12.6%), skin problems (9.1%), asthma attacks (7.0%), and neurological problems (5.1%) (Table 1). More specifically, examining links between specific exposures and health effects for each country (Table 2), the highest average percentage (50.6%) is for respiratory problems from exposure to air fresheners and deodorizers.

Health effects from exposure to fragranced products can be considered disabling, according to legislative criteria that define disability in each country (ADAAA 2008; DDA 1992; EA 2010; DA 2008). Across the four countries, 9.5% of the general population, representing 29.1% of fragrance sensitive individuals (49.5% US, 17.1% AU, 25.5% UK, 24.2% SE), report health effects that can be considered disabling (Table 3).

Fragranced product exposures are associated with loss of societal access. Among the general population, 13.3% are unable or reluctant to use restrooms in a public place if it has an air freshener, deodorizer, or scented product; 10.4% are unable or reluctant to wash their hands with soap in a public place if the soap is fragranced; 17.0% enter a business and then want to leave as quickly as possible if they smell air fresheners or a fragranced product; and 22.7% have been prevented from going someplace because they would be exposed to a fragranced product that would make them sick (see Table 3).

Exposures are also associated with lost workdays and lost jobs. Among the general population, 9.0% have lost workdays or lost a job, representing 27.5% of fragrance sensitive individuals, in the past year, due to illness from fragranced product exposure in the workplace.

Personal costs due to these workplace exposures are estimated by individuals to be $8.60 × 1010—$2.06 × 1011; midrange value of $1.46 × 1011, or $146 billion (in terms of 2016 US Dollars). Given the estimated population affected, over 33 million people (USCB 2016; ABS 2016; ONS 2016; SCB 2017), this represents an estimated average annual cost of $4300 per person. In terms of eight-hour equivalent days, the estimated losses across the four countries are over 200 million worker days per year (see Table 3).

Fragrance-free environments receive a majority of support (see Table 4). Among the general population, 47.8% would support a fragrance-free policy in the workplace (compared to 20.4% that would not); 51.4% would prefer that health care facilities and professionals were fragrance-free (compared to 22.1% that would not); 60.7% would choose a hotel without fragranced air (compared to 22.1% with fragranced air); and 64.8% would choose an airplane without fragranced air (compared to 16.1% with fragranced air). Thus, in all categories, more than twice as many people would prefer fragrance-free environments and policies as not.

Demographic proportions of fragrance sensitivity across the four countries are 41.5% male and 58.6% female, compared with the general population of 48.9% male and 51.1% female. Thus, fragrance sensitivity has a female bias (+ 7.5%). Relative to gender and age, the highest bias (percentage fragrance sensitivity greater than general population) is female 45–54 (+ 2.9%) (see ESM Data-Tables 20 and 21).

Study strengths include the following: (a) sample populations in each country were statistically representative of age, gender, and region; (b) respondents were randomly recruited from large web-based panels developed from multiple sources to reflect population characteristics; and (c) the survey employed questions from large national studies previously conducted and published to promote replicability and comparability.

Study limitations include the following: (a) only adults ages 18–65 were included in the survey, which excludes other age groups; (b) the survey relied on self-reported data; however, self-report is a widely accepted method for survey research; (c) the cross-sectional design of the survey represents data from only one point in time; and (d) all possible fragranced products and health effects were not included, although the relatively low percentages for responses in the “other” categories indicate the survey captured the primary products and effects.

Conclusion

Is fragrance sensitivity an epidemic? Given that nearly one-third of the population across four countries reports adverse effects, and that associated health effects and societal costs can be serious, the answer appears to be yes. In addition, a majority of the population in each of these four countries would prefer fragrance-free to fragranced environments.

Toward this goal, a practical approach would be to use products without fragrance (such as fragrance-free products) or to obviate the use of fragranced products (such as air fresheners) (e.g., Steinemann 2017b). Another step would be the listing of “fragrance” on the label for all types of consumer products (not only for foods, drugs, and cosmetics) so that consumers know whether a product contains fragrance. A further step would be a more complete disclosure and understanding of the specific ingredients in a product’s “fragrance.”

As studies have shown, fragranced consumer products can be primary sources of human exposure to potentially hazardous compounds (Hoang et al. 2017; Gokhale et al. 2008; Nazaroff and Weschler 2004), indoor air pollutants (Geiss et al. 2011; Edwards et al. 2001), as well as outdoor air pollutants (McDonald et al. 2018). Thus, reducing exposure could potentially benefit not only individuals but also society and the broader environment.

Notes

Acknowledgements

I thank the anonymous reviewers of this article, the staff of Dynata (formerly known as Research Now Survey Sampling International), and John Barrie for their valuable contributions.

Funding

This research received support in part for the Australian survey from the Australian Government’s National Environmental Science Program through the Clean Air and Urban Landscapes Hub.

Compliance with ethical standards

The research study received ethics approval from the University of Melbourne.

Supplementary material

11869_2019_699_MOESM1_ESM.pdf (2.1 mb)
ESM 1 (PDF 2108 kb)
11869_2019_699_MOESM2_ESM.pdf (52 kb)
ESM 2 (PDF 51 kb)
11869_2019_699_MOESM3_ESM.pdf (154 kb)
ESM 3 (PDF 153 kb)

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© The Author(s) 2019

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Infrastructure Engineering, Melbourne School of EngineeringThe University of MelbourneParkvilleAustralia
  2. 2.College of Science and EngineeringJames Cook UniversityTownsvilleAustralia

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