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Guidelines for Metals and Metalloids in Ambient ... - ARCHIVE: Defra

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Beryllium<br />

power stations or waste <strong>in</strong>c<strong>in</strong>erators – presumably because the latter<br />

may be used <strong>for</strong> the disposal of the many electrical items (computers<br />

<strong>and</strong> mobile phones) that conta<strong>in</strong> beryllium. S<strong>in</strong>ce it is fairly easily<br />

mobilised, beryllium <strong>in</strong> fly ash is a potential source of environmental<br />

contam<strong>in</strong>ation; concentrations vary from 1.6–46 mg/kg (Kubiznáková,<br />

1987; Stadnichenko et al., 1961). The highest ambient air levels have<br />

been recorded near factories <strong>and</strong> the like where beryllium is processed<br />

or beryllium-conta<strong>in</strong><strong>in</strong>g products are manufactured. Around a<br />

beryllium process<strong>in</strong>g plant <strong>in</strong> Lora<strong>in</strong>e, Ohio, USA, Eisenbud et al.<br />

(1949), found that with<strong>in</strong> approximately 650 feet (212 metres) of the<br />

plant measured concentrations of beryllium were as high as 460 ng/m 3 ,<br />

fall<strong>in</strong>g to 30 ng/m 3 a mile (1.61 km) distant.<br />

Table 4.1: Atmospheric concentrations of beryllium <strong>in</strong> polluted <strong>and</strong> unpolluted<br />

environments, various countries.<br />

Site<br />

Rural USA<br />

Suburban USA<br />

Urban USA<br />

Urban Germany<br />

In vic<strong>in</strong>ity of coal-fired power station, Spa<strong>in</strong><br />

In vic<strong>in</strong>ity of Beryllium process<strong>in</strong>g plant,<br />

USA.<br />

In vic<strong>in</strong>ity (400m) of Beryllium process<strong>in</strong>g<br />

plant, <strong>for</strong>mer USSR – no emission control<br />

Beryllium<br />

concentration (ng/m 3 )<br />

0.03 – 0.06<br />

0.04 – 0.07<br />

up to 6.7<br />

0.06 – 0.33<br />

up to 1.61<br />

up to 82.7<br />

1000<br />

Data source<br />

Ross et al. (1977)<br />

Ross et al. (1977)<br />

ASTDR (2002)<br />

Mueller (1979);<br />

Freise <strong>and</strong> Israel<br />

(1987)<br />

Boix et al. (2001)<br />

Sussman et al. (1959)<br />

Benko et al. (1980)<br />

Comparison between these <strong>and</strong> earlier measurements suggests a marked reduction<br />

over time <strong>in</strong> levels of atmospheric contam<strong>in</strong>ation.<br />

177. In the UK Harrison et al. (2003) measured beryllium <strong>in</strong> air<br />

concentrations <strong>in</strong> Birm<strong>in</strong>gham between October 2000 <strong>and</strong> January<br />

2001 <strong>in</strong> the PM 10 size range at a roadside location. The average<br />

concentration from 30 daily samples was 0.05 ng/m 3 , with <strong>in</strong>dividual<br />

daily concentrations rang<strong>in</strong>g from 0.01-0.15 ng/m 3 . The beryllium was<br />

primarily with<strong>in</strong> the f<strong>in</strong>est size fraction sampled (< 0.2 µm<br />

aerodynamic diameter).<br />

4.1.3 Human exposures<br />

178. Human exposure can occur via <strong>in</strong>halation, <strong>in</strong>gestion or sk<strong>in</strong> contact.<br />

Inhalation represents the major pathway with regard to <strong>in</strong>dustrial<br />

exposure but dermal exposure through penetration of sk<strong>in</strong> can lead to<br />

beryllium dermatitis <strong>and</strong> subcutaneous, granulomatous nodules. The<br />

role of dermal exposure as a route of sensitisation <strong>and</strong> disease is<br />

uncerta<strong>in</strong> (T<strong>in</strong>kle et al., 2003; Day et al., 2006).<br />

65

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