本文關(guān)鍵詞： 海拔 眼 紫外線 暴露強度　出處：《中國公共衛(wèi)生》2017年04期 　論文類型：期刊論文

【摘要】：目的了解不同海拔的西昌和紹興地區(qū)眼紫外線暴露強度的日間分布及隨太陽高度角變化的差異。方法采用自行研制的眼紫外線暴露模型,在晴好天氣下,分別在西昌和紹興地區(qū)進行監(jiān)測。監(jiān)測的數(shù)據(jù)運用Ava Soft 7.4 for USB2軟件和Origin Pro 8軟件進行數(shù)據(jù)處理和分析。結(jié)果最大暴露狀態(tài)下,西昌和紹興地區(qū)眼紫外線A段(UVA)和紫外線B段(UVB)日間分布均呈雙峰型,峰值UVA分別為2 181.91μW/cm~2和2 003.6μW/cm~2;UVB分別為117.2μW/cm~2和72μW/cm~2;眼部和環(huán)境暴露比表明,在最大暴露狀態(tài)下,西昌和紹興地區(qū)UVA基本相近,分別為0.79和0.80,而UVB西昌大于紹興,分別為0.68和0.55。結(jié)論西昌和紹興地區(qū)眼部UVA與UVB最大暴露強度的日間變化呈雙峰型分布;相同太陽高度角下,眼部UVB暴露強度西昌高于紹興,眼部UVB與環(huán)境UVB暴露比西昌亦大于紹興。
[Abstract]:Objective to investigate the diurnal distribution of ultraviolet exposure intensity and the variation of ultraviolet exposure with solar height in Xichang and Shaoxing areas at different elevations. Data were monitored in Xichang and Shaoxing, respectively. The data were monitored by Ava Soft 7.4 for USB2 and Origin Pro. 8 the data were processed and analyzed by the software. In Xichang and Shaoxing areas, the distribution of UVA and UVB in the eye showed a double peak pattern. The peak UVA was 2 181.91 渭 W / cm ~ (2) and 2 003.6 渭 W / cm ~ (2) respectively. The UVB was 117.2 渭 W / cm ~ (2) and 72 渭 W / cm ~ (2), respectively. The ratio of eye and environment exposure showed that the UVA of Xichang and Shaoxing was similar to that of Shaoxing under the maximum exposure condition (0.79 and 0.80, respectively), while the UVB of Xichang was larger than that of Shaoxing. Conclusion in Xichang and Shaoxing areas, the diurnal variation of maximum exposure intensity of UVA and UVB in the eye is a bimodal distribution. At the same solar height angle, the exposure intensity of eye UVB was higher in Xichang than in Shaoxing, and the ratio of eye UVB to environmental UVB exposure was higher in Xichang than in Shaoxing.
【作者單位】： 中國醫(yī)科大學(xué)附屬第四醫(yī)院眼科;中國醫(yī)科大學(xué)公共衛(wèi)生學(xué)院環(huán)境衛(wèi)生教研室;
【基金】：國家自然科學(xué)基金(81273034) 遼寧省自然科學(xué)基金(2014021009)
【分類號】：R77
【正文快照】： 海拔是影響環(huán)境紫外輻射強度的一個重要因素[1-2]。Godar[3]和Scotto[4]等研究得出,海拔每升高300 m,紫外輻射強度增加3.6%~3.8%。中國海拔最高地區(qū)是青藏高原,平均海拔在4 000~5 000 m,由于海拔高大氣層稀薄,使得到達地面的紫外線增加,相應(yīng)地人體暴露量也越大,尤其是眼晶體的

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2 ;保護眼睛從兒童做起[J];中國眼鏡科技雜志;2006年04期

3 ;[J];;年期

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本文編號：1491074