/**
 * Air quality utility functions for AQI interpretation and health recommendations
 */
/**
 * US AQI health category information
 */
export interface AQICategory {
    level: string;
    description: string;
    healthImplications: string;
    cautionaryStatement: string;
    color: string;
}
/**
 * UV index category information
 */
export interface UVIndexCategory {
    level: string;
    description: string;
    recommendation: string;
}
/**
 * Get US AQI health category based on AQI value
 * US EPA AQI scale: https://www.airnow.gov/aqi/aqi-basics/
 */
export declare function getUSAQICategory(aqi: number): AQICategory;
/**
 * Get European AQI health category based on EAQI value
 * European Environment Agency EAQI scale: 0-20 (good) to 100+ (extremely poor)
 */
export declare function getEuropeanAQICategory(aqi: number): AQICategory;
/**
 * Get UV index category and recommendations
 * WHO UV Index scale: https://www.who.int/news-room/questions-and-answers/item/radiation-the-ultraviolet-(uv)-index
 */
export declare function getUVIndexCategory(uvIndex: number): UVIndexCategory;
/**
 * Get pollutant description and health context
 */
export declare function getPollutantInfo(pollutant: string): {
    name: string;
    description: string;
    sources: string;
};
/**
 * Format pollutant concentration with appropriate units and precision
 */
export declare function formatPollutantConcentration(value: number | undefined, units: string | undefined): string;
/**
 * Determine which AQI to prioritize based on location
 * US locations should show US AQI, others show European AQI
 */
export declare function shouldUseUSAQI(latitude: number, longitude: number): boolean;
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