{
    "document_id": 13781,
    "page": 59,
    "width_pt": 720,
    "height_pt": 540,
    "rotation": 0,
    "pipeline_version": "paddleocr-vl-1.6+paul-48",
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    "source_run_id": 13892,
    "item_count": 16,
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        "formula": 1,
        "header": 2,
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        "text": 2
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    "items": [
        {
            "id": "p59.1",
            "order": 1,
            "type": "header",
            "bbox": {
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            "text": "Noise Pollution\nQuality Guidelines\nWorld Health Organization",
            "attrs": {
                "block_label": "header"
            },
            "level": 2
        },
        {
            "id": "p59.2",
            "order": 2,
            "type": "header",
            "bbox": {
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            },
            "text": "Compendium of WHO\nand other UN guidance on\nhealth and environment\n2024 update",
            "attrs": {
                "block_label": "header"
            },
            "level": 2
        },
        {
            "id": "p59.3",
            "order": 3,
            "type": "list",
            "bbox": {
                "l": 43.44,
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            },
            "text": "",
            "attrs": {
                "item_count": 10
            },
            "children": [
                {
                    "id": "p59.3.1",
                    "order": 4,
                    "type": "list_item",
                    "bbox": {
                        "l": 44.64,
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                    },
                    "text": "Based on the systematic review of evidence available at the time of the development of the environmental noise guidelines (2), the following recommended levels for specific noise sources can be defined.",
                    "marker": "•"
                },
                {
                    "id": "p59.3.2",
                    "order": 5,
                    "type": "list_item",
                    "bbox": {
                        "l": 43.68,
                        "t": 311.5516,
                        "r": 652.08,
                        "b": 263.04
                    },
                    "text": "For average noise exposure, the following sound pressure levels are recommended (2, 6):",
                    "marker": "•"
                },
                {
                    "id": "p59.3.3",
                    "order": 6,
                    "type": "list_item",
                    "bbox": {
                        "l": 79.68,
                        "t": 263.3116,
                        "r": 364.8,
                        "b": 240.05200000000002
                    },
                    "text": "< 53 dB f[p59.4.3.1]or road traffic noise",
                    "marker": "•",
                    "children": [
                        {
                            "id": "p59.3.3.1",
                            "order": 7,
                            "type": "text",
                            "bbox": {
                                "l": 79.68,
                                "t": 263.3116,
                                "r": 364.8,
                                "b": 240.05200000000002
                            },
                            "text": "L_{den}",
                            "attrs": {
                                "inline": true,
                                "text_offset": 9,
                                "text_span": 11,
                                "bbox_estimated": true
                            }
                        }
                    ]
                },
                {
                    "id": "p59.3.4",
                    "order": 8,
                    "type": "list_item",
                    "bbox": {
                        "l": 79.68,
                        "t": 242.91160000000002,
                        "r": 332.88,
                        "b": 219.652
                    },
                    "text": "< 54 dB L_{den} for railway noise",
                    "marker": "•"
                },
                {
                    "id": "p59.3.5",
                    "order": 9,
                    "type": "list_item",
                    "bbox": {
                        "l": 79.68,
                        "t": 222.5116,
                        "r": 338.4,
                        "b": 199.252
                    },
                    "text": "< 45 dB f[p59.4.5.1]or aircraft noise",
                    "marker": "•",
                    "children": [
                        {
                            "id": "p59.3.5.1",
                            "order": 10,
                            "type": "text",
                            "bbox": {
                                "l": 79.68,
                                "t": 222.5116,
                                "r": 338.4,
                                "b": 199.252
                            },
                            "text": "L_{den}",
                            "attrs": {
                                "inline": true,
                                "text_offset": 9,
                                "text_span": 11,
                                "bbox_estimated": true
                            }
                        }
                    ]
                },
                {
                    "id": "p59.3.6",
                    "order": 11,
                    "type": "list_item",
                    "bbox": {
                        "l": 79.92,
                        "t": 202.1116,
                        "r": 376.08,
                        "b": 178.85199999999998
                    },
                    "text": "< 45 dB L_{den} for wind turbine noise",
                    "marker": "•"
                },
                {
                    "id": "p59.3.7",
                    "order": 12,
                    "type": "list_item",
                    "bbox": {
                        "l": 43.44,
                        "t": 181.95159999999998,
                        "r": 626.16,
                        "b": 133.68
                    },
                    "text": "For night noise exposure, the following sound pressure levels are recommended (2):",
                    "marker": "•"
                },
                {
                    "id": "p59.3.8",
                    "order": 13,
                    "type": "list_item",
                    "bbox": {
                        "l": 80.16,
                        "t": 133.71159999999998,
                        "r": 377.04,
                        "b": 110.452
                    },
                    "text": "< 45 dB f[p59.4.8.1]or road traffic noise",
                    "marker": "•",
                    "children": [
                        {
                            "id": "p59.3.8.1",
                            "order": 14,
                            "type": "formula",
                            "bbox": {
                                "l": 80.16,
                                "t": 133.71159999999998,
                                "r": 377.04,
                                "b": 110.452
                            },
                            "text": "L_{night}",
                            "attrs": {
                                "latex": "L_{night}",
                                "inline": true,
                                "text_offset": 9,
                                "text_span": 11,
                                "bbox_estimated": true,
                                "notation": "latex",
                                "alt": "L sub night",
                                "mathml": "<math aria-label=\"L sub night\" xmlns=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><mrow><msub><mi>L</mi><mrow><mi>n</mi><mi>i</mi><mi>g</mi><mi>h</mi><mi>t</mi></mrow></msub></mrow></math>"
                            }
                        }
                    ]
                },
                {
                    "id": "p59.3.9",
                    "order": 15,
                    "type": "list_item",
                    "bbox": {
                        "l": 79.68,
                        "t": 113.3116,
                        "r": 344.88,
                        "b": 90.05200000000002
                    },
                    "text": "< 44 dB L_{night} for railway noise",
                    "marker": "•"
                },
                {
                    "id": "p59.3.10",
                    "order": 16,
                    "type": "list_item",
                    "bbox": {
                        "l": 79.44,
                        "t": 92.91160000000002,
                        "r": 352.08,
                        "b": 69.65199999999999
                    },
                    "text": "< 40 dB L_{night} for aircraft noise.",
                    "marker": "•"
                }
            ]
        }
    ],
    "excluded_furniture": {
        "first": [],
        "last": []
    }
}